20472080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{15053}}^1$

素因数の和:15083

約数の個数: 40

約数和(自身を含む): 50400792

約数和(自身を除く): 29928712

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 15053, 30106, 60212, 75265, 120424, 150530, 240848, 255901, 301060, 511802, 602120, 1023604, 1204240, 1279505, 2047208, 2559010, 4094416, 5118020, 10236040, 20472080]

約数ペア:

[(1, 20472080), (2, 10236040), (4, 5118020), (5, 4094416), (8, 2559010), (10, 2047208), (16, 1279505), (17, 1204240), (20, 1023604), (34, 602120), (40, 511802), (68, 301060), (80, 255901), (85, 240848), (136, 150530), (170, 120424), (272, 75265), (340, 60212), (680, 30106), (1360, 15053)]