1851561920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{445087}}^1$

素因数の和:445117

約数の個数: 56

約数和(自身を含む): 4748198784

約数和(自身を除く): 2896636864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 445087, 890174, 1780348, 2225435, 3560696, 4450870, 5786131, 7121392, 8901740, 11572262, 14242784, 17803480, 23144524, 28485568, 28930655, 35606960, 46289048, 57861310, 71213920, 92578096, 115722620, 142427840, 185156192, 231445240, 370312384, 462890480, 925780960, 1851561920]

約数ペア:

[(1, 1851561920), (2, 925780960), (4, 462890480), (5, 370312384), (8, 231445240), (10, 185156192), (13, 142427840), (16, 115722620), (20, 92578096), (26, 71213920), (32, 57861310), (40, 46289048), (52, 35606960), (64, 28930655), (65, 28485568), (80, 23144524), (104, 17803480), (130, 14242784), (160, 11572262), (208, 8901740), (260, 7121392), (320, 5786131), (416, 4450870), (520, 3560696), (832, 2225435), (1040, 1780348), (2080, 890174), (4160, 445087)]