39641680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{811}}^1$

素因数の和:884

約数の個数: 80

約数和(自身を含む): 101493504

約数和(自身を除く): 61851824

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 130, 188, 208, 235, 260, 376, 470, 520, 611, 752, 811, 940, 1040, 1222, 1622, 1880, 2444, 3055, 3244, 3760, 4055, 4888, 6110, 6488, 8110, 9776, 10543, 12220, 12976, 16220, 21086, 24440, 32440, 38117, 42172, 48880, 52715, 64880, 76234, 84344, 105430, 152468, 168688, 190585, 210860, 304936, 381170, 421720, 495521, 609872, 762340, 843440, 991042, 1524680, 1982084, 2477605, 3049360, 3964168, 4955210, 7928336, 9910420, 19820840, 39641680]

約数ペア:

[(1, 39641680), (2, 19820840), (4, 9910420), (5, 7928336), (8, 4955210), (10, 3964168), (13, 3049360), (16, 2477605), (20, 1982084), (26, 1524680), (40, 991042), (47, 843440), (52, 762340), (65, 609872), (80, 495521), (94, 421720), (104, 381170), (130, 304936), (188, 210860), (208, 190585), (235, 168688), (260, 152468), (376, 105430), (470, 84344), (520, 76234), (611, 64880), (752, 52715), (811, 48880), (940, 42172), (1040, 38117), (1222, 32440), (1622, 24440), (1880, 21086), (2444, 16220), (3055, 12976), (3244, 12220), (3760, 10543), (4055, 9776), (4888, 8110), (6110, 6488)]