209944204060

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1\times {\mathrm{656527}}^1$

素因数の和:656866

約数の個数: 48

約数和(自身を含む): 450010552320

約数和(自身を除く): 240066348260

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 271, 295, 542, 590, 1084, 1180, 1355, 2710, 5420, 15989, 31978, 63956, 79945, 159890, 319780, 656527, 1313054, 2626108, 3282635, 6565270, 13130540, 38735093, 77470186, 154940372, 177918817, 193675465, 355837634, 387350930, 711675268, 774701860, 889594085, 1779188170, 3558376340, 10497210203, 20994420406, 41988840812, 52486051015, 104972102030, 209944204060]

約数ペア:

[(1, 209944204060), (2, 104972102030), (4, 52486051015), (5, 41988840812), (10, 20994420406), (20, 10497210203), (59, 3558376340), (118, 1779188170), (236, 889594085), (271, 774701860), (295, 711675268), (542, 387350930), (590, 355837634), (1084, 193675465), (1180, 177918817), (1355, 154940372), (2710, 77470186), (5420, 38735093), (15989, 13130540), (31978, 6565270), (63956, 3282635), (79945, 2626108), (159890, 1313054), (319780, 656527)]