126981920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1489}}^1$

素因数の和:1558

約数の個数: 96

約数和(自身を含む): 331173360

約数和(自身を除く): 204191440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 65, 80, 82, 104, 130, 160, 164, 205, 208, 260, 328, 410, 416, 520, 533, 656, 820, 1040, 1066, 1312, 1489, 1640, 2080, 2132, 2665, 2978, 3280, 4264, 5330, 5956, 6560, 7445, 8528, 10660, 11912, 14890, 17056, 19357, 21320, 23824, 29780, 38714, 42640, 47648, 59560, 61049, 77428, 85280, 96785, 119120, 122098, 154856, 193570, 238240, 244196, 305245, 309712, 387140, 488392, 610490, 619424, 774280, 793637, 976784, 1220980, 1548560, 1587274, 1953568, 2441960, 3097120, 3174548, 3968185, 4883920, 6349096, 7936370, 9767840, 12698192, 15872740, 25396384, 31745480, 63490960, 126981920]

約数ペア:

[(1, 126981920), (2, 63490960), (4, 31745480), (5, 25396384), (8, 15872740), (10, 12698192), (13, 9767840), (16, 7936370), (20, 6349096), (26, 4883920), (32, 3968185), (40, 3174548), (41, 3097120), (52, 2441960), (65, 1953568), (80, 1587274), (82, 1548560), (104, 1220980), (130, 976784), (160, 793637), (164, 774280), (205, 619424), (208, 610490), (260, 488392), (328, 387140), (410, 309712), (416, 305245), (520, 244196), (533, 238240), (656, 193570), (820, 154856), (1040, 122098), (1066, 119120), (1312, 96785), (1489, 85280), (1640, 77428), (2080, 61049), (2132, 59560), (2665, 47648), (2978, 42640), (3280, 38714), (4264, 29780), (5330, 23824), (5956, 21320), (6560, 19357), (7445, 17056), (8528, 14890), (10660, 11912)]