28723840

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1213}}^1$

素因数の和:1269

約数の個数: 64

約数和(自身を含む): 70581960

約数和(自身を除く): 41858120

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, 1184, 1213, 1480, 2368, 2426, 2960, 4736, 4852, 5920, 6065, 9704, 11840, 12130, 19408, 23680, 24260, 38816, 44881, 48520, 77632, 89762, 97040, 155264, 179524, 194080, 224405, 359048, 388160, 448810, 718096, 776320, 897620, 1436192, 1795240, 2872384, 3590480, 5744768, 7180960, 14361920, 28723840]

約数ペア:

[(1, 28723840), (2, 14361920), (4, 7180960), (5, 5744768), (8, 3590480), (10, 2872384), (16, 1795240), (20, 1436192), (32, 897620), (37, 776320), (40, 718096), (64, 448810), (74, 388160), (80, 359048), (128, 224405), (148, 194080), (160, 179524), (185, 155264), (296, 97040), (320, 89762), (370, 77632), (592, 48520), (640, 44881), (740, 38816), (1184, 24260), (1213, 23680), (1480, 19408), (2368, 12130), (2426, 11840), (2960, 9704), (4736, 6065), (4852, 5920)]