217291810

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{20101}}^1$

素因数の和:20178

約数の個数: 32

約数和(自身を含む): 416835072

約数和(自身を除く): 199543262

約数列:

[1, 2, 5, 10, 23, 46, 47, 94, 115, 230, 235, 470, 1081, 2162, 5405, 10810, 20101, 40202, 100505, 201010, 462323, 924646, 944747, 1889494, 2311615, 4623230, 4723735, 9447470, 21729181, 43458362, 108645905, 217291810]

約数ペア:

[(1, 217291810), (2, 108645905), (5, 43458362), (10, 21729181), (23, 9447470), (46, 4723735), (47, 4623230), (94, 2311615), (115, 1889494), (230, 944747), (235, 924646), (470, 462323), (1081, 201010), (2162, 100505), (5405, 40202), (10810, 20101)]