40340560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:596

約数の個数: 80

約数和(自身を含む): 102493440

約数和(自身を除く): 62152880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 316, 395, 491, 520, 632, 790, 982, 1027, 1040, 1264, 1580, 1964, 2054, 2455, 3160, 3928, 4108, 4910, 5135, 6320, 6383, 7856, 8216, 9820, 10270, 12766, 16432, 19640, 20540, 25532, 31915, 38789, 39280, 41080, 51064, 63830, 77578, 82160, 102128, 127660, 155156, 193945, 255320, 310312, 387890, 504257, 510640, 620624, 775780, 1008514, 1551560, 2017028, 2521285, 3103120, 4034056, 5042570, 8068112, 10085140, 20170280, 40340560]

約数ペア:

[(1, 40340560), (2, 20170280), (4, 10085140), (5, 8068112), (8, 5042570), (10, 4034056), (13, 3103120), (16, 2521285), (20, 2017028), (26, 1551560), (40, 1008514), (52, 775780), (65, 620624), (79, 510640), (80, 504257), (104, 387890), (130, 310312), (158, 255320), (208, 193945), (260, 155156), (316, 127660), (395, 102128), (491, 82160), (520, 77578), (632, 63830), (790, 51064), (982, 41080), (1027, 39280), (1040, 38789), (1264, 31915), (1580, 25532), (1964, 20540), (2054, 19640), (2455, 16432), (3160, 12766), (3928, 10270), (4108, 9820), (4910, 8216), (5135, 7856), (6320, 6383)]