201689680

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{15467}}^1$

素因数の和:15643

約数の個数: 40

約数和(自身を含む): 471835872

約数和(自身を除く): 270146192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 15467, 30934, 61868, 77335, 123736, 154670, 247472, 309340, 618680, 1237360, 2521121, 5042242, 10084484, 12605605, 20168968, 25211210, 40337936, 50422420, 100844840, 201689680]

約数ペア:

[(1, 201689680), (2, 100844840), (4, 50422420), (5, 40337936), (8, 25211210), (10, 20168968), (16, 12605605), (20, 10084484), (40, 5042242), (80, 2521121), (163, 1237360), (326, 618680), (652, 309340), (815, 247472), (1304, 154670), (1630, 123736), (2608, 77335), (3260, 61868), (6520, 30934), (13040, 15467)]