1279794820

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{467}}^1\times {\mathrm{521}}^1$

素因数の和:1260

約数の個数: 48

約数和(自身を含む): 2708754048

約数和(自身を除く): 1428959228

約数列:

[1, 2, 4, 5, 10, 20, 263, 467, 521, 526, 934, 1042, 1052, 1315, 1868, 2084, 2335, 2605, 2630, 4670, 5210, 5260, 9340, 10420, 122821, 137023, 243307, 245642, 274046, 486614, 491284, 548092, 614105, 685115, 973228, 1216535, 1228210, 1370230, 2433070, 2456420, 2740460, 4866140, 63989741, 127979482, 255958964, 319948705, 639897410, 1279794820]

約数ペア:

[(1, 1279794820), (2, 639897410), (4, 319948705), (5, 255958964), (10, 127979482), (20, 63989741), (263, 4866140), (467, 2740460), (521, 2456420), (526, 2433070), (934, 1370230), (1042, 1228210), (1052, 1216535), (1315, 973228), (1868, 685115), (2084, 614105), (2335, 548092), (2605, 491284), (2630, 486614), (4670, 274046), (5210, 245642), (5260, 243307), (9340, 137023), (10420, 122821)]