142839320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8861}}^1$

素因数の和:8916

約数の個数: 64

約数和(自身を含む): 357315840

約数和(自身を除く): 214476520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 8861, 16120, 17722, 35444, 44305, 70888, 88610, 115193, 177220, 230386, 274691, 354440, 460772, 549382, 575965, 921544, 1098764, 1151930, 1373455, 2197528, 2303860, 2746910, 3570983, 4607720, 5493820, 7141966, 10987640, 14283932, 17854915, 28567864, 35709830, 71419660, 142839320]

約数ペア:

[(1, 142839320), (2, 71419660), (4, 35709830), (5, 28567864), (8, 17854915), (10, 14283932), (13, 10987640), (20, 7141966), (26, 5493820), (31, 4607720), (40, 3570983), (52, 2746910), (62, 2303860), (65, 2197528), (104, 1373455), (124, 1151930), (130, 1098764), (155, 921544), (248, 575965), (260, 549382), (310, 460772), (403, 354440), (520, 274691), (620, 230386), (806, 177220), (1240, 115193), (1612, 88610), (2015, 70888), (3224, 44305), (4030, 35444), (8060, 17722), (8861, 16120)]