64721860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{3529}}^1$

素因数の和:3676

約数の個数: 48

約数和(自身を含む): 156562560

約数和(自身を除く): 91840700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1834, 2620, 3529, 3668, 4585, 7058, 9170, 14116, 17645, 18340, 24703, 35290, 49406, 70580, 98812, 123515, 247030, 462299, 494060, 924598, 1849196, 2311495, 3236093, 4622990, 6472186, 9245980, 12944372, 16180465, 32360930, 64721860]

約数ペア:

[(1, 64721860), (2, 32360930), (4, 16180465), (5, 12944372), (7, 9245980), (10, 6472186), (14, 4622990), (20, 3236093), (28, 2311495), (35, 1849196), (70, 924598), (131, 494060), (140, 462299), (262, 247030), (524, 123515), (655, 98812), (917, 70580), (1310, 49406), (1834, 35290), (2620, 24703), (3529, 18340), (3668, 17645), (4585, 14116), (7058, 9170)]