15740540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 34473600

約数和(自身を除く): 18733060

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 89, 148, 178, 185, 239, 356, 370, 445, 478, 740, 890, 956, 1195, 1780, 2390, 3293, 4780, 6586, 8843, 13172, 16465, 17686, 21271, 32930, 35372, 42542, 44215, 65860, 85084, 88430, 106355, 176860, 212710, 425420, 787027, 1574054, 3148108, 3935135, 7870270, 15740540]

約数ペア:

[(1, 15740540), (2, 7870270), (4, 3935135), (5, 3148108), (10, 1574054), (20, 787027), (37, 425420), (74, 212710), (89, 176860), (148, 106355), (178, 88430), (185, 85084), (239, 65860), (356, 44215), (370, 42542), (445, 35372), (478, 32930), (740, 21271), (890, 17686), (956, 16465), (1195, 13172), (1780, 8843), (2390, 6586), (3293, 4780)]