31564820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1039}}^1$

素因数の和:1093

約数の個数: 72

約数和(自身を含む): 79672320

約数和(自身を除く): 48107500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 868, 980, 1039, 1085, 1519, 2078, 2170, 3038, 4156, 4340, 5195, 6076, 7273, 7595, 10390, 14546, 15190, 20780, 29092, 30380, 32209, 36365, 50911, 64418, 72730, 101822, 128836, 145460, 161045, 203644, 225463, 254555, 322090, 450926, 509110, 644180, 901852, 1018220, 1127315, 1578241, 2254630, 3156482, 4509260, 6312964, 7891205, 15782410, 31564820]

約数ペア:

[(1, 31564820), (2, 15782410), (4, 7891205), (5, 6312964), (7, 4509260), (10, 3156482), (14, 2254630), (20, 1578241), (28, 1127315), (31, 1018220), (35, 901852), (49, 644180), (62, 509110), (70, 450926), (98, 322090), (124, 254555), (140, 225463), (155, 203644), (196, 161045), (217, 145460), (245, 128836), (310, 101822), (434, 72730), (490, 64418), (620, 50911), (868, 36365), (980, 32209), (1039, 30380), (1085, 29092), (1519, 20780), (2078, 15190), (2170, 14546), (3038, 10390), (4156, 7595), (4340, 7273), (5195, 6076)]