256519912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{153421}}^1$

素因数の和:153457

約数の個数: 32

約数和(自身を含む): 552319200

約数和(自身を除く): 295799288

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 153421, 306842, 613684, 1227368, 1687631, 2914999, 3375262, 5829998, 6750524, 11659996, 13501048, 23319992, 32064989, 64129978, 128259956, 256519912]

約数ペア:

[(1, 256519912), (2, 128259956), (4, 64129978), (8, 32064989), (11, 23319992), (19, 13501048), (22, 11659996), (38, 6750524), (44, 5829998), (76, 3375262), (88, 2914999), (152, 1687631), (209, 1227368), (418, 613684), (836, 306842), (1672, 153421)]