17718980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28579}}^1$

素因数の和:28619

約数の個数: 24

約数和(自身を含む): 38411520

約数和(自身を除く): 20692540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 28579, 57158, 114316, 142895, 285790, 571580, 885949, 1771898, 3543796, 4429745, 8859490, 17718980]

約数ペア:

[(1, 17718980), (2, 8859490), (4, 4429745), (5, 3543796), (10, 1771898), (20, 885949), (31, 571580), (62, 285790), (124, 142895), (155, 114316), (310, 57158), (620, 28579)]