1813040

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:317

約数の個数: 40

約数和(自身を含む): 4272048

約数和(自身を除く): 2459008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 173, 262, 346, 524, 655, 692, 865, 1048, 1310, 1384, 1730, 2096, 2620, 2768, 3460, 5240, 6920, 10480, 13840, 22663, 45326, 90652, 113315, 181304, 226630, 362608, 453260, 906520, 1813040]

約数ペア:

[(1, 1813040), (2, 906520), (4, 453260), (5, 362608), (8, 226630), (10, 181304), (16, 113315), (20, 90652), (40, 45326), (80, 22663), (131, 13840), (173, 10480), (262, 6920), (346, 5240), (524, 3460), (655, 2768), (692, 2620), (865, 2096), (1048, 1730), (1310, 1384)]