1291480

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{389}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 2948400

約数和(自身を除く): 1656920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 389, 415, 664, 778, 830, 1556, 1660, 1945, 3112, 3320, 3890, 7780, 15560, 32287, 64574, 129148, 161435, 258296, 322870, 645740, 1291480]

約数ペア:

[(1, 1291480), (2, 645740), (4, 322870), (5, 258296), (8, 161435), (10, 129148), (20, 64574), (40, 32287), (83, 15560), (166, 7780), (332, 3890), (389, 3320), (415, 3112), (664, 1945), (778, 1660), (830, 1556)]