20340020740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{290821}}^1$

素因数の和:291112

約数の個数: 48

約数和(自身を含む): 46170900720

約数和(自身を除く): 25830879980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 269, 538, 1076, 1345, 2690, 3497, 5380, 6994, 13988, 17485, 34970, 69940, 290821, 581642, 1163284, 1454105, 2908210, 3780673, 5816420, 7561346, 15122692, 18903365, 37806730, 75613460, 78230849, 156461698, 312923396, 391154245, 782308490, 1017001037, 1564616980, 2034002074, 4068004148, 5085005185, 10170010370, 20340020740]

約数ペア:

[(1, 20340020740), (2, 10170010370), (4, 5085005185), (5, 4068004148), (10, 2034002074), (13, 1564616980), (20, 1017001037), (26, 782308490), (52, 391154245), (65, 312923396), (130, 156461698), (260, 78230849), (269, 75613460), (538, 37806730), (1076, 18903365), (1345, 15122692), (2690, 7561346), (3497, 5816420), (5380, 3780673), (6994, 2908210), (13988, 1454105), (17485, 1163284), (34970, 581642), (69940, 290821)]