239998720

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{14423}}^1$

素因数の和:14457

約数の個数: 72

約数和(自身を含む): 619135776

約数和(自身を除く): 379137056

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 14423, 16640, 28846, 57692, 72115, 115384, 144230, 187499, 230768, 288460, 374998, 461536, 576920, 749996, 923072, 937495, 1153840, 1499992, 1846144, 1874990, 2307680, 2999984, 3692288, 3749980, 4615360, 5999968, 7499960, 9230720, 11999936, 14999920, 18461440, 23999872, 29999840, 47999744, 59999680, 119999360, 239998720]

約数ペア:

[(1, 239998720), (2, 119999360), (4, 59999680), (5, 47999744), (8, 29999840), (10, 23999872), (13, 18461440), (16, 14999920), (20, 11999936), (26, 9230720), (32, 7499960), (40, 5999968), (52, 4615360), (64, 3749980), (65, 3692288), (80, 2999984), (104, 2307680), (128, 1874990), (130, 1846144), (160, 1499992), (208, 1153840), (256, 937495), (260, 923072), (320, 749996), (416, 576920), (520, 461536), (640, 374998), (832, 288460), (1040, 230768), (1280, 187499), (1664, 144230), (2080, 115384), (3328, 72115), (4160, 57692), (8320, 28846), (14423, 16640)]