9172820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 20563200

約数和(自身を除く): 11390380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 239, 380, 404, 478, 505, 956, 1010, 1195, 1919, 2020, 2390, 3838, 4541, 4780, 7676, 9082, 9595, 18164, 19190, 22705, 24139, 38380, 45410, 48278, 90820, 96556, 120695, 241390, 458641, 482780, 917282, 1834564, 2293205, 4586410, 9172820]

約数ペア:

[(1, 9172820), (2, 4586410), (4, 2293205), (5, 1834564), (10, 917282), (19, 482780), (20, 458641), (38, 241390), (76, 120695), (95, 96556), (101, 90820), (190, 48278), (202, 45410), (239, 38380), (380, 24139), (404, 22705), (478, 19190), (505, 18164), (956, 9595), (1010, 9082), (1195, 7676), (1919, 4780), (2020, 4541), (2390, 3838)]