640853248

素因数分解:

$2^8\times 7^1\times {\mathrm{357619}}^1$

素因数の和:357642

約数の個数: 36

約数和(自身を含む): 1461950560

約数和(自身を除く): 821097312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 357619, 715238, 1430476, 2503333, 2860952, 5006666, 5721904, 10013332, 11443808, 20026664, 22887616, 40053328, 45775232, 80106656, 91550464, 160213312, 320426624, 640853248]

約数ペア:

[(1, 640853248), (2, 320426624), (4, 160213312), (7, 91550464), (8, 80106656), (14, 45775232), (16, 40053328), (28, 22887616), (32, 20026664), (56, 11443808), (64, 10013332), (112, 5721904), (128, 5006666), (224, 2860952), (256, 2503333), (448, 1430476), (896, 715238), (1792, 357619)]