13419640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 32931360

約数和(自身を除く): 19511720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 197, 260, 262, 394, 520, 524, 655, 788, 985, 1048, 1310, 1576, 1703, 1970, 2561, 2620, 3406, 3940, 5122, 5240, 6812, 7880, 8515, 10244, 12805, 13624, 17030, 20488, 25610, 25807, 34060, 51220, 51614, 68120, 102440, 103228, 129035, 206456, 258070, 335491, 516140, 670982, 1032280, 1341964, 1677455, 2683928, 3354910, 6709820, 13419640]

約数ペア:

[(1, 13419640), (2, 6709820), (4, 3354910), (5, 2683928), (8, 1677455), (10, 1341964), (13, 1032280), (20, 670982), (26, 516140), (40, 335491), (52, 258070), (65, 206456), (104, 129035), (130, 103228), (131, 102440), (197, 68120), (260, 51614), (262, 51220), (394, 34060), (520, 25807), (524, 25610), (655, 20488), (788, 17030), (985, 13624), (1048, 12805), (1310, 10244), (1576, 8515), (1703, 7880), (1970, 6812), (2561, 5240), (2620, 5122), (3406, 3940)]