1276921000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2423}}^1$

素因数の和:2492

約数の個数: 128

約数和(自身を含む): 3267164160

約数和(自身を除く): 1990243160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 31, 34, 40, 50, 62, 68, 85, 100, 124, 125, 136, 155, 170, 200, 248, 250, 310, 340, 425, 500, 527, 620, 680, 775, 850, 1000, 1054, 1240, 1550, 1700, 2108, 2125, 2423, 2635, 3100, 3400, 3875, 4216, 4250, 4846, 5270, 6200, 7750, 8500, 9692, 10540, 12115, 13175, 15500, 17000, 19384, 21080, 24230, 26350, 31000, 41191, 48460, 52700, 60575, 65875, 75113, 82382, 96920, 105400, 121150, 131750, 150226, 164764, 205955, 242300, 263500, 300452, 302875, 329528, 375565, 411910, 484600, 527000, 600904, 605750, 751130, 823820, 1029775, 1211500, 1276921, 1502260, 1647640, 1877825, 2059550, 2423000, 2553842, 3004520, 3755650, 4119100, 5107684, 5148875, 6384605, 7511300, 8238200, 9389125, 10215368, 10297750, 12769210, 15022600, 18778250, 20595500, 25538420, 31923025, 37556500, 41191000, 51076840, 63846050, 75113000, 127692100, 159615125, 255384200, 319230250, 638460500, 1276921000]

約数ペア:

[(1, 1276921000), (2, 638460500), (4, 319230250), (5, 255384200), (8, 159615125), (10, 127692100), (17, 75113000), (20, 63846050), (25, 51076840), (31, 41191000), (34, 37556500), (40, 31923025), (50, 25538420), (62, 20595500), (68, 18778250), (85, 15022600), (100, 12769210), (124, 10297750), (125, 10215368), (136, 9389125), (155, 8238200), (170, 7511300), (200, 6384605), (248, 5148875), (250, 5107684), (310, 4119100), (340, 3755650), (425, 3004520), (500, 2553842), (527, 2423000), (620, 2059550), (680, 1877825), (775, 1647640), (850, 1502260), (1000, 1276921), (1054, 1211500), (1240, 1029775), (1550, 823820), (1700, 751130), (2108, 605750), (2125, 600904), (2423, 527000), (2635, 484600), (3100, 411910), (3400, 375565), (3875, 329528), (4216, 302875), (4250, 300452), (4846, 263500), (5270, 242300), (6200, 205955), (7750, 164764), (8500, 150226), (9692, 131750), (10540, 121150), (12115, 105400), (13175, 96920), (15500, 82382), (17000, 75113), (19384, 65875), (21080, 60575), (24230, 52700), (26350, 48460), (31000, 41191)]