1987720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 5299200

約数和(自身を除く): 3311480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 229, 248, 280, 310, 434, 458, 620, 868, 916, 1085, 1145, 1240, 1603, 1736, 1832, 2170, 2290, 3206, 4340, 4580, 6412, 7099, 8015, 8680, 9160, 12824, 14198, 16030, 28396, 32060, 35495, 49693, 56792, 64120, 70990, 99386, 141980, 198772, 248465, 283960, 397544, 496930, 993860, 1987720]

約数ペア:

[(1, 1987720), (2, 993860), (4, 496930), (5, 397544), (7, 283960), (8, 248465), (10, 198772), (14, 141980), (20, 99386), (28, 70990), (31, 64120), (35, 56792), (40, 49693), (56, 35495), (62, 32060), (70, 28396), (124, 16030), (140, 14198), (155, 12824), (217, 9160), (229, 8680), (248, 8015), (280, 7099), (310, 6412), (434, 4580), (458, 4340), (620, 3206), (868, 2290), (916, 2170), (1085, 1832), (1145, 1736), (1240, 1603)]