20647098550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{474101}}^1$

素因数の和:474193

約数の個数: 48

約数和(自身を含む): 41975094672

約数和(自身を除く): 21327996122

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 67, 130, 134, 325, 335, 650, 670, 871, 1675, 1742, 3350, 4355, 8710, 21775, 43550, 474101, 948202, 2370505, 4741010, 6163313, 11852525, 12326626, 23705050, 30816565, 31764767, 61633130, 63529534, 154082825, 158823835, 308165650, 317647670, 412941971, 794119175, 825883942, 1588238350, 2064709855, 4129419710, 10323549275, 20647098550]

約数ペア:

[(1, 20647098550), (2, 10323549275), (5, 4129419710), (10, 2064709855), (13, 1588238350), (25, 825883942), (26, 794119175), (50, 412941971), (65, 317647670), (67, 308165650), (130, 158823835), (134, 154082825), (325, 63529534), (335, 61633130), (650, 31764767), (670, 30816565), (871, 23705050), (1675, 12326626), (1742, 11852525), (3350, 6163313), (4355, 4741010), (8710, 2370505), (21775, 948202), (43550, 474101)]