76287880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 177493680

約数和(自身を除く): 101205800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 181, 205, 257, 328, 362, 410, 514, 724, 820, 905, 1028, 1285, 1448, 1640, 1810, 2056, 2570, 3620, 5140, 7240, 7421, 10280, 10537, 14842, 21074, 29684, 37105, 42148, 46517, 52685, 59368, 74210, 84296, 93034, 105370, 148420, 186068, 210740, 232585, 296840, 372136, 421480, 465170, 930340, 1860680, 1907197, 3814394, 7628788, 9535985, 15257576, 19071970, 38143940, 76287880]

約数ペア:

[(1, 76287880), (2, 38143940), (4, 19071970), (5, 15257576), (8, 9535985), (10, 7628788), (20, 3814394), (40, 1907197), (41, 1860680), (82, 930340), (164, 465170), (181, 421480), (205, 372136), (257, 296840), (328, 232585), (362, 210740), (410, 186068), (514, 148420), (724, 105370), (820, 93034), (905, 84296), (1028, 74210), (1285, 59368), (1448, 52685), (1640, 46517), (1810, 42148), (2056, 37105), (2570, 29684), (3620, 21074), (5140, 14842), (7240, 10537), (7421, 10280)]