64731940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5081}}^1$

素因数の和:5117

約数の個数: 72

約数和(自身を含む): 170328312

約数和(自身を除く): 105596372

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 5081, 6370, 10162, 12740, 20324, 25405, 35567, 50810, 66053, 71134, 101620, 132106, 142268, 177835, 248969, 264212, 330265, 355670, 462371, 497938, 660530, 711340, 924742, 995876, 1244845, 1321060, 1849484, 2311855, 2489690, 3236597, 4623710, 4979380, 6473194, 9247420, 12946388, 16182985, 32365970, 64731940]

約数ペア:

[(1, 64731940), (2, 32365970), (4, 16182985), (5, 12946388), (7, 9247420), (10, 6473194), (13, 4979380), (14, 4623710), (20, 3236597), (26, 2489690), (28, 2311855), (35, 1849484), (49, 1321060), (52, 1244845), (65, 995876), (70, 924742), (91, 711340), (98, 660530), (130, 497938), (140, 462371), (182, 355670), (196, 330265), (245, 264212), (260, 248969), (364, 177835), (455, 142268), (490, 132106), (637, 101620), (910, 71134), (980, 66053), (1274, 50810), (1820, 35567), (2548, 25405), (3185, 20324), (5081, 12740), (6370, 10162)]