12857521820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4495637}}^1$

素因数の和:4495670

約数の個数: 48

約数和(自身を含む): 31721221728

約数和(自身を除く): 18863699908

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 4495637, 8991274, 17982548, 22478185, 44956370, 49452007, 58443281, 89912740, 98904014, 116886562, 197808028, 233773124, 247260035, 292216405, 494520070, 584432810, 642876091, 989040140, 1168865620, 1285752182, 2571504364, 3214380455, 6428760910, 12857521820]

約数ペア:

[(1, 12857521820), (2, 6428760910), (4, 3214380455), (5, 2571504364), (10, 1285752182), (11, 1168865620), (13, 989040140), (20, 642876091), (22, 584432810), (26, 494520070), (44, 292216405), (52, 247260035), (55, 233773124), (65, 197808028), (110, 116886562), (130, 98904014), (143, 89912740), (220, 58443281), (260, 49452007), (286, 44956370), (572, 22478185), (715, 17982548), (1430, 8991274), (2860, 4495637)]