28236416

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:337

約数の個数: 64

約数和(自身を含む): 61689600

約数和(自身を除く): 33453184

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 128, 142, 208, 239, 284, 416, 478, 568, 832, 923, 956, 1136, 1664, 1846, 1912, 2272, 3107, 3692, 3824, 4544, 6214, 7384, 7648, 9088, 12428, 14768, 15296, 16969, 24856, 29536, 30592, 33938, 49712, 59072, 67876, 99424, 118144, 135752, 198848, 220597, 271504, 397696, 441194, 543008, 882388, 1086016, 1764776, 2172032, 3529552, 7059104, 14118208, 28236416]

約数ペア:

[(1, 28236416), (2, 14118208), (4, 7059104), (8, 3529552), (13, 2172032), (16, 1764776), (26, 1086016), (32, 882388), (52, 543008), (64, 441194), (71, 397696), (104, 271504), (128, 220597), (142, 198848), (208, 135752), (239, 118144), (284, 99424), (416, 67876), (478, 59072), (568, 49712), (832, 33938), (923, 30592), (956, 29536), (1136, 24856), (1664, 16969), (1846, 15296), (1912, 14768), (2272, 12428), (3107, 9088), (3692, 7648), (3824, 7384), (4544, 6214)]