8379980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{503}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 21718368

約数和(自身を除く): 13338388

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 503, 595, 833, 980, 1006, 1190, 1666, 2012, 2380, 2515, 3332, 3521, 4165, 5030, 7042, 8330, 8551, 10060, 14084, 16660, 17102, 17605, 24647, 34204, 35210, 42755, 49294, 59857, 70420, 85510, 98588, 119714, 123235, 171020, 239428, 246470, 299285, 418999, 492940, 598570, 837998, 1197140, 1675996, 2094995, 4189990, 8379980]

約数ペア:

[(1, 8379980), (2, 4189990), (4, 2094995), (5, 1675996), (7, 1197140), (10, 837998), (14, 598570), (17, 492940), (20, 418999), (28, 299285), (34, 246470), (35, 239428), (49, 171020), (68, 123235), (70, 119714), (85, 98588), (98, 85510), (119, 70420), (140, 59857), (170, 49294), (196, 42755), (238, 35210), (245, 34204), (340, 24647), (476, 17605), (490, 17102), (503, 16660), (595, 14084), (833, 10060), (980, 8551), (1006, 8330), (1190, 7042), (1666, 5030), (2012, 4165), (2380, 3521), (2515, 3332)]