38989980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 124304544

約数和(自身を除く): 85314564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 61, 67, 90, 106, 122, 134, 159, 180, 183, 201, 212, 244, 265, 268, 305, 318, 335, 366, 402, 477, 530, 549, 603, 610, 636, 670, 732, 795, 804, 915, 954, 1005, 1060, 1098, 1206, 1220, 1340, 1590, 1830, 1908, 2010, 2196, 2385, 2412, 2745, 3015, 3180, 3233, 3551, 3660, 4020, 4087, 4770, 5490, 6030, 6466, 7102, 8174, 9540, 9699, 10653, 10980, 12060, 12261, 12932, 14204, 16165, 16348, 17755, 19398, 20435, 21306, 24522, 29097, 31959, 32330, 35510, 36783, 38796, 40870, 42612, 48495, 49044, 53265, 58194, 61305, 63918, 64660, 71020, 73566, 81740, 96990, 106530, 116388, 122610, 127836, 145485, 147132, 159795, 183915, 193980, 213060, 216611, 245220, 290970, 319590, 367830, 433222, 581940, 639180, 649833, 735660, 866444, 1083055, 1299666, 1949499, 2166110, 2599332, 3249165, 3898998, 4332220, 6498330, 7797996, 9747495, 12996660, 19494990, 38989980]

約数ペア:

[(1, 38989980), (2, 19494990), (3, 12996660), (4, 9747495), (5, 7797996), (6, 6498330), (9, 4332220), (10, 3898998), (12, 3249165), (15, 2599332), (18, 2166110), (20, 1949499), (30, 1299666), (36, 1083055), (45, 866444), (53, 735660), (60, 649833), (61, 639180), (67, 581940), (90, 433222), (106, 367830), (122, 319590), (134, 290970), (159, 245220), (180, 216611), (183, 213060), (201, 193980), (212, 183915), (244, 159795), (265, 147132), (268, 145485), (305, 127836), (318, 122610), (335, 116388), (366, 106530), (402, 96990), (477, 81740), (530, 73566), (549, 71020), (603, 64660), (610, 63918), (636, 61305), (670, 58194), (732, 53265), (795, 49044), (804, 48495), (915, 42612), (954, 40870), (1005, 38796), (1060, 36783), (1098, 35510), (1206, 32330), (1220, 31959), (1340, 29097), (1590, 24522), (1830, 21306), (1908, 20435), (2010, 19398), (2196, 17755), (2385, 16348), (2412, 16165), (2745, 14204), (3015, 12932), (3180, 12261), (3233, 12060), (3551, 10980), (3660, 10653), (4020, 9699), (4087, 9540), (4770, 8174), (5490, 7102), (6030, 6466)]