991181600

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2351}}^1$

素因数の和:2419

約数の個数: 144

約数和(自身を含む): 2645830656

約数和(自身を除く): 1654649056

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 31, 32, 34, 40, 50, 62, 68, 80, 85, 100, 124, 136, 155, 160, 170, 200, 248, 272, 310, 340, 400, 425, 496, 527, 544, 620, 680, 775, 800, 850, 992, 1054, 1240, 1360, 1550, 1700, 2108, 2351, 2480, 2635, 2720, 3100, 3400, 4216, 4702, 4960, 5270, 6200, 6800, 8432, 9404, 10540, 11755, 12400, 13175, 13600, 16864, 18808, 21080, 23510, 24800, 26350, 37616, 39967, 42160, 47020, 52700, 58775, 72881, 75232, 79934, 84320, 94040, 105400, 117550, 145762, 159868, 188080, 199835, 210800, 235100, 291524, 319736, 364405, 376160, 399670, 421600, 470200, 583048, 639472, 728810, 799340, 940400, 999175, 1166096, 1238977, 1278944, 1457620, 1598680, 1822025, 1880800, 1998350, 2332192, 2477954, 2915240, 3197360, 3644050, 3996700, 4955908, 5830480, 6194885, 6394720, 7288100, 7993400, 9911816, 11660960, 12389770, 14576200, 15986800, 19823632, 24779540, 29152400, 30974425, 31973600, 39647264, 49559080, 58304800, 61948850, 99118160, 123897700, 198236320, 247795400, 495590800, 991181600]

約数ペア:

[(1, 991181600), (2, 495590800), (4, 247795400), (5, 198236320), (8, 123897700), (10, 99118160), (16, 61948850), (17, 58304800), (20, 49559080), (25, 39647264), (31, 31973600), (32, 30974425), (34, 29152400), (40, 24779540), (50, 19823632), (62, 15986800), (68, 14576200), (80, 12389770), (85, 11660960), (100, 9911816), (124, 7993400), (136, 7288100), (155, 6394720), (160, 6194885), (170, 5830480), (200, 4955908), (248, 3996700), (272, 3644050), (310, 3197360), (340, 2915240), (400, 2477954), (425, 2332192), (496, 1998350), (527, 1880800), (544, 1822025), (620, 1598680), (680, 1457620), (775, 1278944), (800, 1238977), (850, 1166096), (992, 999175), (1054, 940400), (1240, 799340), (1360, 728810), (1550, 639472), (1700, 583048), (2108, 470200), (2351, 421600), (2480, 399670), (2635, 376160), (2720, 364405), (3100, 319736), (3400, 291524), (4216, 235100), (4702, 210800), (4960, 199835), (5270, 188080), (6200, 159868), (6800, 145762), (8432, 117550), (9404, 105400), (10540, 94040), (11755, 84320), (12400, 79934), (13175, 75232), (13600, 72881), (16864, 58775), (18808, 52700), (21080, 47020), (23510, 42160), (24800, 39967), (26350, 37616)]