81321420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1355357}}^1$

素因数の和:1355369

約数の個数: 24

約数和(自身を含む): 227700144

約数和(自身を除く): 146378724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1355357, 2710714, 4066071, 5421428, 6776785, 8132142, 13553570, 16264284, 20330355, 27107140, 40660710, 81321420]

約数ペア:

[(1, 81321420), (2, 40660710), (3, 27107140), (4, 20330355), (5, 16264284), (6, 13553570), (10, 8132142), (12, 6776785), (15, 5421428), (20, 4066071), (30, 2710714), (60, 1355357)]