20899320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13397}}^1$

素因数の和:13424

約数の個数: 64

約数和(自身を含む): 67525920

約数和(自身を除く): 46626600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13397, 26794, 40191, 53588, 66985, 80382, 107176, 133970, 160764, 174161, 200955, 267940, 321528, 348322, 401910, 522483, 535880, 696644, 803820, 870805, 1044966, 1393288, 1607640, 1741610, 2089932, 2612415, 3483220, 4179864, 5224830, 6966440, 10449660, 20899320]

約数ペア:

[(1, 20899320), (2, 10449660), (3, 6966440), (4, 5224830), (5, 4179864), (6, 3483220), (8, 2612415), (10, 2089932), (12, 1741610), (13, 1607640), (15, 1393288), (20, 1044966), (24, 870805), (26, 803820), (30, 696644), (39, 535880), (40, 522483), (52, 401910), (60, 348322), (65, 321528), (78, 267940), (104, 200955), (120, 174161), (130, 160764), (156, 133970), (195, 107176), (260, 80382), (312, 66985), (390, 53588), (520, 40191), (780, 26794), (1560, 13397)]