19525550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 40068864

約数和(自身を除く): 20543314

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 131, 262, 271, 275, 542, 550, 655, 1310, 1355, 1441, 2710, 2882, 2981, 3275, 5962, 6550, 6775, 7205, 13550, 14410, 14905, 29810, 35501, 36025, 71002, 72050, 74525, 149050, 177505, 355010, 390511, 781022, 887525, 1775050, 1952555, 3905110, 9762775, 19525550]

約数ペア:

[(1, 19525550), (2, 9762775), (5, 3905110), (10, 1952555), (11, 1775050), (22, 887525), (25, 781022), (50, 390511), (55, 355010), (110, 177505), (131, 149050), (262, 74525), (271, 72050), (275, 71002), (542, 36025), (550, 35501), (655, 29810), (1310, 14905), (1355, 14410), (1441, 13550), (2710, 7205), (2882, 6775), (2981, 6550), (3275, 5962)]