20341120

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{859}}^1$

素因数の和:915

約数の個数: 64

約数和(自身を含む): 50000400

約数和(自身を除く): 29659280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 296, 320, 370, 592, 640, 740, 859, 1184, 1480, 1718, 2368, 2960, 3436, 4295, 4736, 5920, 6872, 8590, 11840, 13744, 17180, 23680, 27488, 31783, 34360, 54976, 63566, 68720, 109952, 127132, 137440, 158915, 254264, 274880, 317830, 508528, 549760, 635660, 1017056, 1271320, 2034112, 2542640, 4068224, 5085280, 10170560, 20341120]

約数ペア:

[(1, 20341120), (2, 10170560), (4, 5085280), (5, 4068224), (8, 2542640), (10, 2034112), (16, 1271320), (20, 1017056), (32, 635660), (37, 549760), (40, 508528), (64, 317830), (74, 274880), (80, 254264), (128, 158915), (148, 137440), (160, 127132), (185, 109952), (296, 68720), (320, 63566), (370, 54976), (592, 34360), (640, 31783), (740, 27488), (859, 23680), (1184, 17180), (1480, 13744), (1718, 11840), (2368, 8590), (2960, 6872), (3436, 5920), (4295, 4736)]