20860960

素因数分解:

$2^5\times 5^1\times {\mathrm{241}}^1\times {\mathrm{541}}^1$

素因数の和:797

約数の個数: 48

約数和(自身を含む): 49579992

約数和(自身を除く): 28719032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 241, 482, 541, 964, 1082, 1205, 1928, 2164, 2410, 2705, 3856, 4328, 4820, 5410, 7712, 8656, 9640, 10820, 17312, 19280, 21640, 38560, 43280, 86560, 130381, 260762, 521524, 651905, 1043048, 1303810, 2086096, 2607620, 4172192, 5215240, 10430480, 20860960]

約数ペア:

[(1, 20860960), (2, 10430480), (4, 5215240), (5, 4172192), (8, 2607620), (10, 2086096), (16, 1303810), (20, 1043048), (32, 651905), (40, 521524), (80, 260762), (160, 130381), (241, 86560), (482, 43280), (541, 38560), (964, 21640), (1082, 19280), (1205, 17312), (1928, 10820), (2164, 9640), (2410, 8656), (2705, 7712), (3856, 5410), (4328, 4820)]