153920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:67

約数の個数: 56

約数和(自身を含む): 405384

約数和(自身を除く): 251464

約数列:

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

約数ペア:

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