209998620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5279}}^1$

素因数の和:5324

約数の個数: 144

約数和(自身を含む): 726485760

約数和(自身を除く): 516487140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 1020, 1105, 1170, 1326, 1530, 1989, 2210, 2340, 2652, 3060, 3315, 3978, 4420, 5279, 6630, 7956, 9945, 10558, 13260, 15837, 19890, 21116, 26395, 31674, 39780, 47511, 52790, 63348, 68627, 79185, 89743, 95022, 105580, 137254, 158370, 179486, 190044, 205881, 237555, 269229, 274508, 316740, 343135, 358972, 411762, 448715, 475110, 538458, 617643, 686270, 807687, 823524, 897430, 950220, 1029405, 1076916, 1166659, 1235286, 1346145, 1372540, 1615374, 1794860, 2058810, 2333318, 2470572, 2692290, 3088215, 3230748, 3499977, 4038435, 4117620, 4666636, 5384580, 5833295, 6176430, 6999954, 8076870, 10499931, 11666590, 12352860, 13999908, 16153740, 17499885, 20999862, 23333180, 34999770, 41999724, 52499655, 69999540, 104999310, 209998620]

約数ペア:

[(1, 209998620), (2, 104999310), (3, 69999540), (4, 52499655), (5, 41999724), (6, 34999770), (9, 23333180), (10, 20999862), (12, 17499885), (13, 16153740), (15, 13999908), (17, 12352860), (18, 11666590), (20, 10499931), (26, 8076870), (30, 6999954), (34, 6176430), (36, 5833295), (39, 5384580), (45, 4666636), (51, 4117620), (52, 4038435), (60, 3499977), (65, 3230748), (68, 3088215), (78, 2692290), (85, 2470572), (90, 2333318), (102, 2058810), (117, 1794860), (130, 1615374), (153, 1372540), (156, 1346145), (170, 1235286), (180, 1166659), (195, 1076916), (204, 1029405), (221, 950220), (234, 897430), (255, 823524), (260, 807687), (306, 686270), (340, 617643), (390, 538458), (442, 475110), (468, 448715), (510, 411762), (585, 358972), (612, 343135), (663, 316740), (765, 274508), (780, 269229), (884, 237555), (1020, 205881), (1105, 190044), (1170, 179486), (1326, 158370), (1530, 137254), (1989, 105580), (2210, 95022), (2340, 89743), (2652, 79185), (3060, 68627), (3315, 63348), (3978, 52790), (4420, 47511), (5279, 39780), (6630, 31674), (7956, 26395), (9945, 21116), (10558, 19890), (13260, 15837)]