254906180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{2087}}^1$

素因数の和:2324

約数の個数: 48

約数和(自身を含む): 555641856

約数和(自身を除く): 300735676

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 197, 310, 394, 620, 788, 985, 1970, 2087, 3940, 4174, 6107, 8348, 10435, 12214, 20870, 24428, 30535, 41740, 61070, 64697, 122140, 129394, 258788, 323485, 411139, 646970, 822278, 1293940, 1644556, 2055695, 4111390, 8222780, 12745309, 25490618, 50981236, 63726545, 127453090, 254906180]

約数ペア:

[(1, 254906180), (2, 127453090), (4, 63726545), (5, 50981236), (10, 25490618), (20, 12745309), (31, 8222780), (62, 4111390), (124, 2055695), (155, 1644556), (197, 1293940), (310, 822278), (394, 646970), (620, 411139), (788, 323485), (985, 258788), (1970, 129394), (2087, 122140), (3940, 64697), (4174, 61070), (6107, 41740), (8348, 30535), (10435, 24428), (12214, 20870)]