2100078740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{14207}}^1$

素因数の和:14624

約数の個数: 48

約数和(自身を含む): 4654540800

約数和(自身を除く): 2554462060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 389, 778, 1556, 1945, 3890, 7391, 7780, 14207, 14782, 28414, 29564, 36955, 56828, 71035, 73910, 142070, 147820, 269933, 284140, 539866, 1079732, 1349665, 2699330, 5398660, 5526523, 11053046, 22106092, 27632615, 55265230, 105003937, 110530460, 210007874, 420015748, 525019685, 1050039370, 2100078740]

約数ペア:

[(1, 2100078740), (2, 1050039370), (4, 525019685), (5, 420015748), (10, 210007874), (19, 110530460), (20, 105003937), (38, 55265230), (76, 27632615), (95, 22106092), (190, 11053046), (380, 5526523), (389, 5398660), (778, 2699330), (1556, 1349665), (1945, 1079732), (3890, 539866), (7391, 284140), (7780, 269933), (14207, 147820), (14782, 142070), (28414, 73910), (29564, 71035), (36955, 56828)]