78147640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2803}}^1$

素因数の和:2872

約数の個数: 64

約数和(自身を含む): 190784160

約数和(自身を除く): 112636520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 680, 697, 820, 1394, 1640, 2788, 2803, 3485, 5576, 5606, 6970, 11212, 13940, 14015, 22424, 27880, 28030, 47651, 56060, 95302, 112120, 114923, 190604, 229846, 238255, 381208, 459692, 476510, 574615, 919384, 953020, 1149230, 1906040, 1953691, 2298460, 3907382, 4596920, 7814764, 9768455, 15629528, 19536910, 39073820, 78147640]

約数ペア:

[(1, 78147640), (2, 39073820), (4, 19536910), (5, 15629528), (8, 9768455), (10, 7814764), (17, 4596920), (20, 3907382), (34, 2298460), (40, 1953691), (41, 1906040), (68, 1149230), (82, 953020), (85, 919384), (136, 574615), (164, 476510), (170, 459692), (205, 381208), (328, 238255), (340, 229846), (410, 190604), (680, 114923), (697, 112120), (820, 95302), (1394, 56060), (1640, 47651), (2788, 28030), (2803, 27880), (3485, 22424), (5576, 14015), (5606, 13940), (6970, 11212)]