90011920

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{15413}}^1$

素因数の和:15499

約数の個数: 40

約数和(自身を含む): 212158296

約数和(自身を除く): 122146376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 15413, 30826, 61652, 77065, 123304, 154130, 246608, 308260, 616520, 1125149, 1233040, 2250298, 4500596, 5625745, 9001192, 11251490, 18002384, 22502980, 45005960, 90011920]

約数ペア:

[(1, 90011920), (2, 45005960), (4, 22502980), (5, 18002384), (8, 11251490), (10, 9001192), (16, 5625745), (20, 4500596), (40, 2250298), (73, 1233040), (80, 1125149), (146, 616520), (292, 308260), (365, 246608), (584, 154130), (730, 123304), (1168, 77065), (1460, 61652), (2920, 30826), (5840, 15413)]