257619712

素因数分解:

$2^8\times 7^1\times {\mathrm{233}}^1\times {\mathrm{617}}^1$

素因数の和:873

約数の個数: 72

約数和(自身を含む): 591173856

約数和(自身を除く): 333554144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 233, 256, 448, 466, 617, 896, 932, 1234, 1631, 1792, 1864, 2468, 3262, 3728, 4319, 4936, 6524, 7456, 8638, 9872, 13048, 14912, 17276, 19744, 26096, 29824, 34552, 39488, 52192, 59648, 69104, 78976, 104384, 138208, 143761, 157952, 208768, 276416, 287522, 417536, 552832, 575044, 1006327, 1105664, 1150088, 2012654, 2300176, 4025308, 4600352, 8050616, 9200704, 16101232, 18401408, 32202464, 36802816, 64404928, 128809856, 257619712]

約数ペア:

[(1, 257619712), (2, 128809856), (4, 64404928), (7, 36802816), (8, 32202464), (14, 18401408), (16, 16101232), (28, 9200704), (32, 8050616), (56, 4600352), (64, 4025308), (112, 2300176), (128, 2012654), (224, 1150088), (233, 1105664), (256, 1006327), (448, 575044), (466, 552832), (617, 417536), (896, 287522), (932, 276416), (1234, 208768), (1631, 157952), (1792, 143761), (1864, 138208), (2468, 104384), (3262, 78976), (3728, 69104), (4319, 59648), (4936, 52192), (6524, 39488), (7456, 34552), (8638, 29824), (9872, 26096), (13048, 19744), (14912, 17276)]