1223980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3221}}^1$

素因数の和:3249

約数の個数: 24

約数和(自身を含む): 2706480

約数和(自身を除く): 1482500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 3221, 6442, 12884, 16105, 32210, 61199, 64420, 122398, 244796, 305995, 611990, 1223980]

約数ペア:

[(1, 1223980), (2, 611990), (4, 305995), (5, 244796), (10, 122398), (19, 64420), (20, 61199), (38, 32210), (76, 16105), (95, 12884), (190, 6442), (380, 3221)]