205640950

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^2\times {\mathrm{659}}^1$

素因数の和:829

約数の個数: 36

約数和(自身を含む): 387982980

約数和(自身を除く): 182342030

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 659, 790, 1318, 1975, 3295, 3950, 6241, 6590, 12482, 16475, 31205, 32950, 52061, 62410, 104122, 156025, 260305, 312050, 520610, 1301525, 2603050, 4112819, 8225638, 20564095, 41128190, 102820475, 205640950]

約数ペア:

[(1, 205640950), (2, 102820475), (5, 41128190), (10, 20564095), (25, 8225638), (50, 4112819), (79, 2603050), (158, 1301525), (395, 520610), (659, 312050), (790, 260305), (1318, 156025), (1975, 104122), (3295, 62410), (3950, 52061), (6241, 32950), (6590, 31205), (12482, 16475)]