78256360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21499}}^1$

素因数の和:21530

約数の個数: 64

約数和(自身を含む): 216720000

約数和(自身を除く): 138463640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 21499, 42998, 85996, 107495, 150493, 171992, 214990, 279487, 300986, 429980, 558974, 601972, 752465, 859960, 1117948, 1203944, 1397435, 1504930, 1956409, 2235896, 2794870, 3009860, 3912818, 5589740, 6019720, 7825636, 9782045, 11179480, 15651272, 19564090, 39128180, 78256360]

約数ペア:

[(1, 78256360), (2, 39128180), (4, 19564090), (5, 15651272), (7, 11179480), (8, 9782045), (10, 7825636), (13, 6019720), (14, 5589740), (20, 3912818), (26, 3009860), (28, 2794870), (35, 2235896), (40, 1956409), (52, 1504930), (56, 1397435), (65, 1203944), (70, 1117948), (91, 859960), (104, 752465), (130, 601972), (140, 558974), (182, 429980), (260, 300986), (280, 279487), (364, 214990), (455, 171992), (520, 150493), (728, 107495), (910, 85996), (1820, 42998), (3640, 21499)]