18808020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:115

約数の個数: 288

約数和(自身を含む): 75479040

約数和(自身を除く): 56671020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 23, 28, 30, 33, 35, 36, 42, 44, 45, 46, 55, 59, 60, 63, 66, 69, 70, 77, 84, 90, 92, 99, 105, 110, 115, 118, 126, 132, 138, 140, 154, 161, 165, 177, 180, 198, 207, 210, 220, 230, 231, 236, 252, 253, 276, 295, 308, 315, 322, 330, 345, 354, 385, 396, 413, 414, 420, 460, 462, 483, 495, 506, 531, 590, 630, 644, 649, 660, 690, 693, 708, 759, 770, 805, 826, 828, 885, 924, 966, 990, 1012, 1035, 1062, 1155, 1180, 1239, 1260, 1265, 1298, 1357, 1380, 1386, 1449, 1518, 1540, 1610, 1652, 1770, 1771, 1932, 1947, 1980, 2065, 2070, 2124, 2277, 2310, 2415, 2478, 2530, 2596, 2655, 2714, 2772, 2898, 3036, 3220, 3245, 3465, 3540, 3542, 3717, 3795, 3894, 4071, 4130, 4140, 4543, 4554, 4620, 4830, 4956, 5060, 5310, 5313, 5428, 5796, 5841, 6195, 6490, 6785, 6930, 7084, 7245, 7434, 7590, 7788, 8142, 8260, 8855, 9086, 9108, 9499, 9660, 9735, 10620, 10626, 11385, 11682, 12213, 12390, 12980, 13570, 13629, 13860, 14490, 14868, 14927, 15180, 15939, 16284, 17710, 18172, 18585, 18998, 19470, 20355, 21252, 22715, 22770, 23364, 24426, 24780, 26565, 27140, 27258, 28497, 28980, 29205, 29854, 31878, 35420, 37170, 37996, 38940, 40710, 40887, 44781, 45430, 45540, 47495, 48852, 53130, 54516, 56994, 58410, 59708, 61065, 63756, 68145, 74340, 74635, 79695, 81420, 81774, 85491, 89562, 90860, 94990, 104489, 106260, 113988, 116820, 122130, 134343, 136290, 142485, 149270, 159390, 163548, 170982, 179124, 189980, 204435, 208978, 223905, 244260, 268686, 272580, 284970, 298540, 313467, 318780, 341964, 408870, 417956, 427455, 447810, 522445, 537372, 569940, 626934, 671715, 817740, 854910, 895620, 940401, 1044890, 1253868, 1343430, 1567335, 1709820, 1880802, 2089780, 2686860, 3134670, 3761604, 4702005, 6269340, 9404010, 18808020]

約数ペア:

[(1, 18808020), (2, 9404010), (3, 6269340), (4, 4702005), (5, 3761604), (6, 3134670), (7, 2686860), (9, 2089780), (10, 1880802), (11, 1709820), (12, 1567335), (14, 1343430), (15, 1253868), (18, 1044890), (20, 940401), (21, 895620), (22, 854910), (23, 817740), (28, 671715), (30, 626934), (33, 569940), (35, 537372), (36, 522445), (42, 447810), (44, 427455), (45, 417956), (46, 408870), (55, 341964), (59, 318780), (60, 313467), (63, 298540), (66, 284970), (69, 272580), (70, 268686), (77, 244260), (84, 223905), (90, 208978), (92, 204435), (99, 189980), (105, 179124), (110, 170982), (115, 163548), (118, 159390), (126, 149270), (132, 142485), (138, 136290), (140, 134343), (154, 122130), (161, 116820), (165, 113988), (177, 106260), (180, 104489), (198, 94990), (207, 90860), (210, 89562), (220, 85491), (230, 81774), (231, 81420), (236, 79695), (252, 74635), (253, 74340), (276, 68145), (295, 63756), (308, 61065), (315, 59708), (322, 58410), (330, 56994), (345, 54516), (354, 53130), (385, 48852), (396, 47495), (413, 45540), (414, 45430), (420, 44781), (460, 40887), (462, 40710), (483, 38940), (495, 37996), (506, 37170), (531, 35420), (590, 31878), (630, 29854), (644, 29205), (649, 28980), (660, 28497), (690, 27258), (693, 27140), (708, 26565), (759, 24780), (770, 24426), (805, 23364), (826, 22770), (828, 22715), (885, 21252), (924, 20355), (966, 19470), (990, 18998), (1012, 18585), (1035, 18172), (1062, 17710), (1155, 16284), (1180, 15939), (1239, 15180), (1260, 14927), (1265, 14868), (1298, 14490), (1357, 13860), (1380, 13629), (1386, 13570), (1449, 12980), (1518, 12390), (1540, 12213), (1610, 11682), (1652, 11385), (1770, 10626), (1771, 10620), (1932, 9735), (1947, 9660), (1980, 9499), (2065, 9108), (2070, 9086), (2124, 8855), (2277, 8260), (2310, 8142), (2415, 7788), (2478, 7590), (2530, 7434), (2596, 7245), (2655, 7084), (2714, 6930), (2772, 6785), (2898, 6490), (3036, 6195), (3220, 5841), (3245, 5796), (3465, 5428), (3540, 5313), (3542, 5310), (3717, 5060), (3795, 4956), (3894, 4830), (4071, 4620), (4130, 4554), (4140, 4543)]