20121247120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19347353}}^1$

素因数の和:19347379

約数の個数: 40

約数和(自身を含む): 50380509816

約数和(自身を除く): 30259262696

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19347353, 38694706, 77389412, 96736765, 154778824, 193473530, 251515589, 309557648, 386947060, 503031178, 773894120, 1006062356, 1257577945, 1547788240, 2012124712, 2515155890, 4024249424, 5030311780, 10060623560, 20121247120]

約数ペア:

[(1, 20121247120), (2, 10060623560), (4, 5030311780), (5, 4024249424), (8, 2515155890), (10, 2012124712), (13, 1547788240), (16, 1257577945), (20, 1006062356), (26, 773894120), (40, 503031178), (52, 386947060), (65, 309557648), (80, 251515589), (104, 193473530), (130, 154778824), (208, 96736765), (260, 77389412), (520, 38694706), (1040, 19347353)]