779797975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 1078859520

約数和(自身を除く): 299061545

約数列:

[1, 5, 11, 25, 55, 89, 151, 211, 275, 445, 755, 979, 1055, 1661, 2225, 2321, 3775, 4895, 5275, 8305, 11605, 13439, 18779, 24475, 31861, 41525, 58025, 67195, 93895, 147829, 159305, 206569, 335975, 350471, 469475, 739145, 796525, 1032845, 1752355, 2835629, 3695725, 5164225, 8761775, 14178145, 31191919, 70890725, 155959595, 779797975]

約数ペア:

[(1, 779797975), (5, 155959595), (11, 70890725), (25, 31191919), (55, 14178145), (89, 8761775), (151, 5164225), (211, 3695725), (275, 2835629), (445, 1752355), (755, 1032845), (979, 796525), (1055, 739145), (1661, 469475), (2225, 350471), (2321, 335975), (3775, 206569), (4895, 159305), (5275, 147829), (8305, 93895), (11605, 67195), (13439, 58025), (18779, 41525), (24475, 31861)]