217654910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{487}}^1$

素因数の和:761

約数の個数: 64

約数和(自身を含む): 455362560

約数和(自身を除く): 237707650

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 239, 374, 478, 487, 935, 974, 1195, 1870, 2390, 2435, 2629, 4063, 4870, 5258, 5357, 8126, 8279, 10714, 13145, 16558, 20315, 26290, 26785, 40630, 41395, 44693, 53570, 82790, 89386, 91069, 116393, 182138, 223465, 232786, 446930, 455345, 581965, 910690, 1163930, 1280323, 1978681, 2560646, 3957362, 6401615, 9893405, 12803230, 19786810, 21765491, 43530982, 108827455, 217654910]

約数ペア:

[(1, 217654910), (2, 108827455), (5, 43530982), (10, 21765491), (11, 19786810), (17, 12803230), (22, 9893405), (34, 6401615), (55, 3957362), (85, 2560646), (110, 1978681), (170, 1280323), (187, 1163930), (239, 910690), (374, 581965), (478, 455345), (487, 446930), (935, 232786), (974, 223465), (1195, 182138), (1870, 116393), (2390, 91069), (2435, 89386), (2629, 82790), (4063, 53570), (4870, 44693), (5258, 41395), (5357, 40630), (8126, 26785), (8279, 26290), (10714, 20315), (13145, 16558)]