157422640

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19483}}^1$

素因数の和:19597

約数の個数: 40

約数和(自身を含む): 369650448

約数和(自身を除く): 212227808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 19483, 38966, 77932, 97415, 155864, 194830, 311728, 389660, 779320, 1558640, 1967783, 3935566, 7871132, 9838915, 15742264, 19677830, 31484528, 39355660, 78711320, 157422640]

約数ペア:

[(1, 157422640), (2, 78711320), (4, 39355660), (5, 31484528), (8, 19677830), (10, 15742264), (16, 9838915), (20, 7871132), (40, 3935566), (80, 1967783), (101, 1558640), (202, 779320), (404, 389660), (505, 311728), (808, 194830), (1010, 155864), (1616, 97415), (2020, 77932), (4040, 38966), (8080, 19483)]