18815940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:99

約数の個数: 288

約数和(自身を含む): 72648576

約数和(自身を除く): 53832636

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 17, 18, 20, 22, 26, 30, 33, 34, 36, 39, 43, 44, 45, 51, 52, 55, 60, 65, 66, 68, 78, 85, 86, 90, 99, 102, 110, 117, 129, 130, 132, 143, 153, 156, 165, 170, 172, 180, 187, 195, 198, 204, 215, 220, 221, 234, 255, 258, 260, 286, 306, 330, 340, 374, 387, 390, 396, 429, 430, 442, 468, 473, 495, 510, 516, 559, 561, 572, 585, 612, 645, 660, 663, 715, 731, 748, 765, 774, 780, 858, 860, 884, 935, 946, 990, 1020, 1105, 1118, 1122, 1170, 1287, 1290, 1326, 1419, 1430, 1462, 1530, 1548, 1677, 1683, 1716, 1870, 1892, 1935, 1980, 1989, 2145, 2193, 2210, 2236, 2244, 2340, 2365, 2431, 2574, 2580, 2652, 2795, 2805, 2838, 2860, 2924, 3060, 3315, 3354, 3366, 3655, 3740, 3870, 3978, 4257, 4290, 4386, 4420, 4730, 4862, 5031, 5148, 5590, 5610, 5676, 6149, 6435, 6579, 6630, 6708, 6732, 7095, 7293, 7310, 7740, 7956, 8041, 8385, 8415, 8514, 8580, 8772, 9460, 9503, 9724, 9945, 10062, 10965, 11180, 11220, 12155, 12298, 12870, 13158, 13260, 14190, 14586, 14620, 16082, 16770, 16830, 17028, 18447, 19006, 19890, 20124, 21285, 21879, 21930, 24123, 24310, 24596, 25155, 25740, 26316, 28380, 28509, 29172, 30745, 32164, 32895, 33540, 33660, 36465, 36894, 38012, 39780, 40205, 42570, 43758, 43860, 47515, 48246, 48620, 50310, 55341, 57018, 61490, 65790, 72369, 72930, 73788, 80410, 85140, 85527, 87516, 92235, 95030, 96492, 100620, 104533, 109395, 110682, 114036, 120615, 122980, 131580, 142545, 144738, 145860, 160820, 171054, 184470, 190060, 209066, 218790, 221364, 241230, 276705, 285090, 289476, 313599, 342108, 361845, 368940, 418132, 427635, 437580, 482460, 522665, 553410, 570180, 627198, 723690, 855270, 940797, 1045330, 1106820, 1254396, 1447380, 1567995, 1710540, 1881594, 2090660, 3135990, 3763188, 4703985, 6271980, 9407970, 18815940]

約数ペア:

[(1, 18815940), (2, 9407970), (3, 6271980), (4, 4703985), (5, 3763188), (6, 3135990), (9, 2090660), (10, 1881594), (11, 1710540), (12, 1567995), (13, 1447380), (15, 1254396), (17, 1106820), (18, 1045330), (20, 940797), (22, 855270), (26, 723690), (30, 627198), (33, 570180), (34, 553410), (36, 522665), (39, 482460), (43, 437580), (44, 427635), (45, 418132), (51, 368940), (52, 361845), (55, 342108), (60, 313599), (65, 289476), (66, 285090), (68, 276705), (78, 241230), (85, 221364), (86, 218790), (90, 209066), (99, 190060), (102, 184470), (110, 171054), (117, 160820), (129, 145860), (130, 144738), (132, 142545), (143, 131580), (153, 122980), (156, 120615), (165, 114036), (170, 110682), (172, 109395), (180, 104533), (187, 100620), (195, 96492), (198, 95030), (204, 92235), (215, 87516), (220, 85527), (221, 85140), (234, 80410), (255, 73788), (258, 72930), (260, 72369), (286, 65790), (306, 61490), (330, 57018), (340, 55341), (374, 50310), (387, 48620), (390, 48246), (396, 47515), (429, 43860), (430, 43758), (442, 42570), (468, 40205), (473, 39780), (495, 38012), (510, 36894), (516, 36465), (559, 33660), (561, 33540), (572, 32895), (585, 32164), (612, 30745), (645, 29172), (660, 28509), (663, 28380), (715, 26316), (731, 25740), (748, 25155), (765, 24596), (774, 24310), (780, 24123), (858, 21930), (860, 21879), (884, 21285), (935, 20124), (946, 19890), (990, 19006), (1020, 18447), (1105, 17028), (1118, 16830), (1122, 16770), (1170, 16082), (1287, 14620), (1290, 14586), (1326, 14190), (1419, 13260), (1430, 13158), (1462, 12870), (1530, 12298), (1548, 12155), (1677, 11220), (1683, 11180), (1716, 10965), (1870, 10062), (1892, 9945), (1935, 9724), (1980, 9503), (1989, 9460), (2145, 8772), (2193, 8580), (2210, 8514), (2236, 8415), (2244, 8385), (2340, 8041), (2365, 7956), (2431, 7740), (2574, 7310), (2580, 7293), (2652, 7095), (2795, 6732), (2805, 6708), (2838, 6630), (2860, 6579), (2924, 6435), (3060, 6149), (3315, 5676), (3354, 5610), (3366, 5590), (3655, 5148), (3740, 5031), (3870, 4862), (3978, 4730), (4257, 4420), (4290, 4386)]