199921708960

素因数分解:

$2^5\times 5^1\times {\mathrm{7883}}^1\times {\mathrm{158507}}^1$

素因数の和:166405

約数の個数: 48

約数和(自身を含む): 472377933216

約数和(自身を除く): 272456224256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 7883, 15766, 31532, 39415, 63064, 78830, 126128, 157660, 158507, 252256, 315320, 317014, 630640, 634028, 792535, 1261280, 1268056, 1585070, 2536112, 3170140, 5072224, 6340280, 12680560, 25361120, 1249510681, 2499021362, 4998042724, 6247553405, 9996085448, 12495106810, 19992170896, 24990213620, 39984341792, 49980427240, 99960854480, 199921708960]

約数ペア:

[(1, 199921708960), (2, 99960854480), (4, 49980427240), (5, 39984341792), (8, 24990213620), (10, 19992170896), (16, 12495106810), (20, 9996085448), (32, 6247553405), (40, 4998042724), (80, 2499021362), (160, 1249510681), (7883, 25361120), (15766, 12680560), (31532, 6340280), (39415, 5072224), (63064, 3170140), (78830, 2536112), (126128, 1585070), (157660, 1268056), (158507, 1261280), (252256, 792535), (315320, 634028), (317014, 630640)]