78393140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{479}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 193052160

約数和(自身を除く): 114659020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 167, 196, 245, 334, 479, 490, 668, 835, 958, 980, 1169, 1670, 1916, 2338, 2395, 3340, 3353, 4676, 4790, 5845, 6706, 8183, 9580, 11690, 13412, 16366, 16765, 23380, 23471, 32732, 33530, 40915, 46942, 67060, 79993, 81830, 93884, 117355, 159986, 163660, 234710, 319972, 399965, 469420, 559951, 799930, 1119902, 1599860, 2239804, 2799755, 3919657, 5599510, 7839314, 11199020, 15678628, 19598285, 39196570, 78393140]

約数ペア:

[(1, 78393140), (2, 39196570), (4, 19598285), (5, 15678628), (7, 11199020), (10, 7839314), (14, 5599510), (20, 3919657), (28, 2799755), (35, 2239804), (49, 1599860), (70, 1119902), (98, 799930), (140, 559951), (167, 469420), (196, 399965), (245, 319972), (334, 234710), (479, 163660), (490, 159986), (668, 117355), (835, 93884), (958, 81830), (980, 79993), (1169, 67060), (1670, 46942), (1916, 40915), (2338, 33530), (2395, 32732), (3340, 23471), (3353, 23380), (4676, 16765), (4790, 16366), (5845, 13412), (6706, 11690), (8183, 9580)]