84640540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{647}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 184633344

約数和(自身を除く): 99992804

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 211, 310, 422, 620, 647, 844, 1055, 1294, 2110, 2588, 3235, 4220, 6470, 6541, 12940, 13082, 20057, 26164, 32705, 40114, 65410, 80228, 100285, 130820, 136517, 200570, 273034, 401140, 546068, 682585, 1365170, 2730340, 4232027, 8464054, 16928108, 21160135, 42320270, 84640540]

約数ペア:

[(1, 84640540), (2, 42320270), (4, 21160135), (5, 16928108), (10, 8464054), (20, 4232027), (31, 2730340), (62, 1365170), (124, 682585), (155, 546068), (211, 401140), (310, 273034), (422, 200570), (620, 136517), (647, 130820), (844, 100285), (1055, 80228), (1294, 65410), (2110, 40114), (2588, 32705), (3235, 26164), (4220, 20057), (6470, 13082), (6541, 12940)]