18969190

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:624

約数の個数: 32

約数和(自身を含む): 35640000

約数和(自身を除く): 16670810

約数列:

[1, 2, 5, 10, 29, 58, 145, 149, 290, 298, 439, 745, 878, 1490, 2195, 4321, 4390, 8642, 12731, 21605, 25462, 43210, 63655, 65411, 127310, 130822, 327055, 654110, 1896919, 3793838, 9484595, 18969190]

約数ペア:

[(1, 18969190), (2, 9484595), (5, 3793838), (10, 1896919), (29, 654110), (58, 327055), (145, 130822), (149, 127310), (290, 65411), (298, 63655), (439, 43210), (745, 25462), (878, 21605), (1490, 12731), (2195, 8642), (4321, 4390)]