256142416

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 533747088

約数和(自身を除く): 277604672

約数列:

[1, 2, 4, 8, 16, 37, 41, 61, 74, 82, 122, 148, 164, 173, 244, 296, 328, 346, 488, 592, 656, 692, 976, 1384, 1517, 2257, 2501, 2768, 3034, 4514, 5002, 6068, 6401, 7093, 9028, 10004, 10553, 12136, 12802, 14186, 18056, 20008, 21106, 24272, 25604, 28372, 36112, 40016, 42212, 51208, 56744, 84424, 92537, 102416, 113488, 168848, 185074, 262441, 370148, 390461, 432673, 524882, 740296, 780922, 865346, 1049764, 1480592, 1561844, 1730692, 2099528, 3123688, 3461384, 4199056, 6247376, 6922768, 16008901, 32017802, 64035604, 128071208, 256142416]

約数ペア:

[(1, 256142416), (2, 128071208), (4, 64035604), (8, 32017802), (16, 16008901), (37, 6922768), (41, 6247376), (61, 4199056), (74, 3461384), (82, 3123688), (122, 2099528), (148, 1730692), (164, 1561844), (173, 1480592), (244, 1049764), (296, 865346), (328, 780922), (346, 740296), (488, 524882), (592, 432673), (656, 390461), (692, 370148), (976, 262441), (1384, 185074), (1517, 168848), (2257, 113488), (2501, 102416), (2768, 92537), (3034, 84424), (4514, 56744), (5002, 51208), (6068, 42212), (6401, 40016), (7093, 36112), (9028, 28372), (10004, 25604), (10553, 24272), (12136, 21106), (12802, 20008), (14186, 18056)]