99591920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{65521}}^1$

素因数の和:65553

約数の個数: 40

約数和(自身を含む): 243741840

約数和(自身を除く): 144149920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 65521, 131042, 262084, 327605, 524168, 655210, 1048336, 1244899, 1310420, 2489798, 2620840, 4979596, 5241680, 6224495, 9959192, 12448990, 19918384, 24897980, 49795960, 99591920]

約数ペア:

[(1, 99591920), (2, 49795960), (4, 24897980), (5, 19918384), (8, 12448990), (10, 9959192), (16, 6224495), (19, 5241680), (20, 4979596), (38, 2620840), (40, 2489798), (76, 1310420), (80, 1244899), (95, 1048336), (152, 655210), (190, 524168), (304, 327605), (380, 262084), (760, 131042), (1520, 65521)]