640911270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{454547}}^1$

素因数の和:454604

約数の個数: 32

約数和(自身を含む): 1570917888

約数和(自身を除く): 930006618

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 141, 235, 282, 470, 705, 1410, 454547, 909094, 1363641, 2272735, 2727282, 4545470, 6818205, 13636410, 21363709, 42727418, 64091127, 106818545, 128182254, 213637090, 320455635, 640911270]

約数ペア:

[(1, 640911270), (2, 320455635), (3, 213637090), (5, 128182254), (6, 106818545), (10, 64091127), (15, 42727418), (30, 21363709), (47, 13636410), (94, 6818205), (141, 4545470), (235, 2727282), (282, 2272735), (470, 1363641), (705, 909094), (1410, 454547)]