890097980

素因数分解:

$2^2\times 5^1\times {\mathrm{1823}}^1\times {\mathrm{24413}}^1$

素因数の和:26245

約数の個数: 24

約数和(自身を含む): 1870307712

約数和(自身を除く): 980209732

約数列:

[1, 2, 4, 5, 10, 20, 1823, 3646, 7292, 9115, 18230, 24413, 36460, 48826, 97652, 122065, 244130, 488260, 44504899, 89009798, 178019596, 222524495, 445048990, 890097980]

約数ペア:

[(1, 890097980), (2, 445048990), (4, 222524495), (5, 178019596), (10, 89009798), (20, 44504899), (1823, 488260), (3646, 244130), (7292, 122065), (9115, 97652), (18230, 48826), (24413, 36460)]