51781582840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3212257}}^1$

素因数の和:3212312

約数の個数: 64

約数和(自身を含む): 129518242560

約数和(自身を除く): 77736659720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 3212257, 6424514, 12849028, 16061285, 25698056, 32122570, 41759341, 64245140, 83518682, 99579967, 128490280, 167037364, 199159934, 208796705, 334074728, 398319868, 417593410, 497899835, 796639736, 835186820, 995799670, 1294539571, 1670373640, 1991599340, 2589079142, 3983198680, 5178158284, 6472697855, 10356316568, 12945395710, 25890791420, 51781582840]

約数ペア:

[(1, 51781582840), (2, 25890791420), (4, 12945395710), (5, 10356316568), (8, 6472697855), (10, 5178158284), (13, 3983198680), (20, 2589079142), (26, 1991599340), (31, 1670373640), (40, 1294539571), (52, 995799670), (62, 835186820), (65, 796639736), (104, 497899835), (124, 417593410), (130, 398319868), (155, 334074728), (248, 208796705), (260, 199159934), (310, 167037364), (403, 128490280), (520, 99579967), (620, 83518682), (806, 64245140), (1240, 41759341), (1612, 32122570), (2015, 25698056), (3224, 16061285), (4030, 12849028), (8060, 6424514), (16120, 3212257)]