2217740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 5668992

約数和(自身を除く): 3451252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 73, 98, 124, 140, 146, 155, 196, 217, 245, 292, 310, 365, 434, 490, 511, 620, 730, 868, 980, 1022, 1085, 1460, 1519, 2044, 2170, 2263, 2555, 3038, 3577, 4340, 4526, 5110, 6076, 7154, 7595, 9052, 10220, 11315, 14308, 15190, 15841, 17885, 22630, 30380, 31682, 35770, 45260, 63364, 71540, 79205, 110887, 158410, 221774, 316820, 443548, 554435, 1108870, 2217740]

約数ペア:

[(1, 2217740), (2, 1108870), (4, 554435), (5, 443548), (7, 316820), (10, 221774), (14, 158410), (20, 110887), (28, 79205), (31, 71540), (35, 63364), (49, 45260), (62, 35770), (70, 31682), (73, 30380), (98, 22630), (124, 17885), (140, 15841), (146, 15190), (155, 14308), (196, 11315), (217, 10220), (245, 9052), (292, 7595), (310, 7154), (365, 6076), (434, 5110), (490, 4526), (511, 4340), (620, 3577), (730, 3038), (868, 2555), (980, 2263), (1022, 2170), (1085, 2044), (1460, 1519)]