642931320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{431}}^1$

素因数の和:877

約数の個数: 128

約数和(自身を含む): 2000609280

約数和(自身を除く): 1357677960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 401, 431, 465, 620, 744, 802, 862, 930, 1203, 1240, 1293, 1604, 1724, 1860, 2005, 2155, 2406, 2586, 3208, 3448, 3720, 4010, 4310, 4812, 5172, 6015, 6465, 8020, 8620, 9624, 10344, 12030, 12431, 12930, 13361, 16040, 17240, 24060, 24862, 25860, 26722, 37293, 40083, 48120, 49724, 51720, 53444, 62155, 66805, 74586, 80166, 99448, 106888, 124310, 133610, 149172, 160332, 172831, 186465, 200415, 248620, 267220, 298344, 320664, 345662, 372930, 400830, 497240, 518493, 534440, 691324, 745860, 801660, 864155, 1036986, 1382648, 1491720, 1603320, 1728310, 2073972, 2592465, 3456620, 4147944, 5184930, 5357761, 6913240, 10369860, 10715522, 16073283, 20739720, 21431044, 26788805, 32146566, 42862088, 53577610, 64293132, 80366415, 107155220, 128586264, 160732830, 214310440, 321465660, 642931320]

約数ペア:

[(1, 642931320), (2, 321465660), (3, 214310440), (4, 160732830), (5, 128586264), (6, 107155220), (8, 80366415), (10, 64293132), (12, 53577610), (15, 42862088), (20, 32146566), (24, 26788805), (30, 21431044), (31, 20739720), (40, 16073283), (60, 10715522), (62, 10369860), (93, 6913240), (120, 5357761), (124, 5184930), (155, 4147944), (186, 3456620), (248, 2592465), (310, 2073972), (372, 1728310), (401, 1603320), (431, 1491720), (465, 1382648), (620, 1036986), (744, 864155), (802, 801660), (862, 745860), (930, 691324), (1203, 534440), (1240, 518493), (1293, 497240), (1604, 400830), (1724, 372930), (1860, 345662), (2005, 320664), (2155, 298344), (2406, 267220), (2586, 248620), (3208, 200415), (3448, 186465), (3720, 172831), (4010, 160332), (4310, 149172), (4812, 133610), (5172, 124310), (6015, 106888), (6465, 99448), (8020, 80166), (8620, 74586), (9624, 66805), (10344, 62155), (12030, 53444), (12431, 51720), (12930, 49724), (13361, 48120), (16040, 40083), (17240, 37293), (24060, 26722), (24862, 25860)]