90007840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:534

約数の個数: 96

約数和(自身を含む): 231683760

約数和(自身を除く): 141675920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 109, 130, 160, 208, 218, 260, 397, 416, 436, 520, 545, 794, 872, 1040, 1090, 1417, 1588, 1744, 1985, 2080, 2180, 2834, 3176, 3488, 3970, 4360, 5161, 5668, 6352, 7085, 7940, 8720, 10322, 11336, 12704, 14170, 15880, 17440, 20644, 22672, 25805, 28340, 31760, 41288, 43273, 45344, 51610, 56680, 63520, 82576, 86546, 103220, 113360, 165152, 173092, 206440, 216365, 226720, 346184, 412880, 432730, 562549, 692368, 825760, 865460, 1125098, 1384736, 1730920, 2250196, 2812745, 3461840, 4500392, 5625490, 6923680, 9000784, 11250980, 18001568, 22501960, 45003920, 90007840]

約数ペア:

[(1, 90007840), (2, 45003920), (4, 22501960), (5, 18001568), (8, 11250980), (10, 9000784), (13, 6923680), (16, 5625490), (20, 4500392), (26, 3461840), (32, 2812745), (40, 2250196), (52, 1730920), (65, 1384736), (80, 1125098), (104, 865460), (109, 825760), (130, 692368), (160, 562549), (208, 432730), (218, 412880), (260, 346184), (397, 226720), (416, 216365), (436, 206440), (520, 173092), (545, 165152), (794, 113360), (872, 103220), (1040, 86546), (1090, 82576), (1417, 63520), (1588, 56680), (1744, 51610), (1985, 45344), (2080, 43273), (2180, 41288), (2834, 31760), (3176, 28340), (3488, 25805), (3970, 22672), (4360, 20644), (5161, 17440), (5668, 15880), (6352, 14170), (7085, 12704), (7940, 11336), (8720, 10322)]