307840

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:69

約数の個数: 64

約数和(自身を含む): 813960

約数和(自身を除く): 506120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 128, 130, 148, 160, 185, 208, 260, 296, 320, 370, 416, 481, 520, 592, 640, 740, 832, 962, 1040, 1184, 1480, 1664, 1924, 2080, 2368, 2405, 2960, 3848, 4160, 4736, 4810, 5920, 7696, 8320, 9620, 11840, 15392, 19240, 23680, 30784, 38480, 61568, 76960, 153920, 307840]

約数ペア:

[(1, 307840), (2, 153920), (4, 76960), (5, 61568), (8, 38480), (10, 30784), (13, 23680), (16, 19240), (20, 15392), (26, 11840), (32, 9620), (37, 8320), (40, 7696), (52, 5920), (64, 4810), (65, 4736), (74, 4160), (80, 3848), (104, 2960), (128, 2405), (130, 2368), (148, 2080), (160, 1924), (185, 1664), (208, 1480), (260, 1184), (296, 1040), (320, 962), (370, 832), (416, 740), (481, 640), (520, 592)]