138978110

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{419}}^1\times {\mathrm{809}}^1$

素因数の和:1276

約数の個数: 32

約数和(自身を含む): 257191200

約数和(自身を除く): 118213090

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 419, 809, 838, 1618, 2095, 4045, 4190, 8090, 17179, 33169, 34358, 66338, 85895, 165845, 171790, 331690, 338971, 677942, 1694855, 3389710, 13897811, 27795622, 69489055, 138978110]

約数ペア:

[(1, 138978110), (2, 69489055), (5, 27795622), (10, 13897811), (41, 3389710), (82, 1694855), (205, 677942), (410, 338971), (419, 331690), (809, 171790), (838, 165845), (1618, 85895), (2095, 66338), (4045, 34358), (4190, 33169), (8090, 17179)]