721298487650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1019}}^1\times {\mathrm{35129}}^1$

素因数の和:36204

約数の個数: 96

約数和(自身を含む): 1492929446400

約数和(自身を除く): 771630958750

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1019, 1550, 2015, 2038, 4030, 5095, 10075, 10190, 13247, 20150, 25475, 26494, 31589, 35129, 50950, 63178, 66235, 70258, 132470, 157945, 175645, 315890, 331175, 351290, 410657, 456677, 662350, 789725, 821314, 878225, 913354, 1088999, 1579450, 1756450, 2053285, 2177998, 2283385, 4106570, 4566770, 5444995, 10266425, 10889990, 11416925, 14156987, 20532850, 22833850, 27224975, 28313974, 35796451, 54449950, 70784935, 71592902, 141569870, 178982255, 353924675, 357964510, 465353863, 707849350, 894911275, 930707726, 1109689981, 1789822550, 2219379962, 2326769315, 4653538630, 5548449905, 11096899810, 11633846575, 14425969753, 23267693150, 27742249525, 28851939506, 55484499050, 72129848765, 144259697530, 360649243825, 721298487650]

約数ペア:

[(1, 721298487650), (2, 360649243825), (5, 144259697530), (10, 72129848765), (13, 55484499050), (25, 28851939506), (26, 27742249525), (31, 23267693150), (50, 14425969753), (62, 11633846575), (65, 11096899810), (130, 5548449905), (155, 4653538630), (310, 2326769315), (325, 2219379962), (403, 1789822550), (650, 1109689981), (775, 930707726), (806, 894911275), (1019, 707849350), (1550, 465353863), (2015, 357964510), (2038, 353924675), (4030, 178982255), (5095, 141569870), (10075, 71592902), (10190, 70784935), (13247, 54449950), (20150, 35796451), (25475, 28313974), (26494, 27224975), (31589, 22833850), (35129, 20532850), (50950, 14156987), (63178, 11416925), (66235, 10889990), (70258, 10266425), (132470, 5444995), (157945, 4566770), (175645, 4106570), (315890, 2283385), (331175, 2177998), (351290, 2053285), (410657, 1756450), (456677, 1579450), (662350, 1088999), (789725, 913354), (821314, 878225)]