1221420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{20357}}^1$

素因数の和:20369

約数の個数: 24

約数和(自身を含む): 3420144

約数和(自身を除く): 2198724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 20357, 40714, 61071, 81428, 101785, 122142, 203570, 244284, 305355, 407140, 610710, 1221420]

約数ペア:

[(1, 1221420), (2, 610710), (3, 407140), (4, 305355), (5, 244284), (6, 203570), (10, 122142), (12, 101785), (15, 81428), (20, 61071), (30, 40714), (60, 20357)]