77787990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:627

約数の個数: 144

約数和(自身を含む): 243285120

約数和(自身を除く): 165497130

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 31, 35, 42, 45, 49, 62, 63, 70, 90, 93, 98, 105, 126, 147, 155, 186, 210, 217, 245, 279, 294, 310, 315, 434, 441, 465, 490, 558, 569, 630, 651, 735, 882, 930, 1085, 1138, 1302, 1395, 1470, 1519, 1707, 1953, 2170, 2205, 2790, 2845, 3038, 3255, 3414, 3906, 3983, 4410, 4557, 5121, 5690, 6510, 7595, 7966, 8535, 9114, 9765, 10242, 11949, 13671, 15190, 17070, 17639, 19530, 19915, 22785, 23898, 25605, 27342, 27881, 35278, 35847, 39830, 45570, 51210, 52917, 55762, 59745, 68355, 71694, 83643, 88195, 105834, 119490, 123473, 136710, 139405, 158751, 167286, 176390, 179235, 246946, 250929, 264585, 278810, 317502, 358470, 370419, 418215, 501858, 529170, 617365, 740838, 793755, 836430, 864311, 1111257, 1234730, 1254645, 1587510, 1728622, 1852095, 2222514, 2509290, 2592933, 3704190, 4321555, 5185866, 5556285, 7778799, 8643110, 11112570, 12964665, 15557598, 25929330, 38893995, 77787990]

約数ペア:

[(1, 77787990), (2, 38893995), (3, 25929330), (5, 15557598), (6, 12964665), (7, 11112570), (9, 8643110), (10, 7778799), (14, 5556285), (15, 5185866), (18, 4321555), (21, 3704190), (30, 2592933), (31, 2509290), (35, 2222514), (42, 1852095), (45, 1728622), (49, 1587510), (62, 1254645), (63, 1234730), (70, 1111257), (90, 864311), (93, 836430), (98, 793755), (105, 740838), (126, 617365), (147, 529170), (155, 501858), (186, 418215), (210, 370419), (217, 358470), (245, 317502), (279, 278810), (294, 264585), (310, 250929), (315, 246946), (434, 179235), (441, 176390), (465, 167286), (490, 158751), (558, 139405), (569, 136710), (630, 123473), (651, 119490), (735, 105834), (882, 88195), (930, 83643), (1085, 71694), (1138, 68355), (1302, 59745), (1395, 55762), (1470, 52917), (1519, 51210), (1707, 45570), (1953, 39830), (2170, 35847), (2205, 35278), (2790, 27881), (2845, 27342), (3038, 25605), (3255, 23898), (3414, 22785), (3906, 19915), (3983, 19530), (4410, 17639), (4557, 17070), (5121, 15190), (5690, 13671), (6510, 11949), (7595, 10242), (7966, 9765), (8535, 9114)]