850640

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{31}}^1$

素因数の和:65

約数の個数: 80

約数和(自身を含む): 2380800

約数和(自身を除く): 1530160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 245, 248, 280, 310, 343, 392, 434, 490, 496, 560, 620, 686, 784, 868, 980, 1085, 1240, 1372, 1519, 1715, 1736, 1960, 2170, 2480, 2744, 3038, 3430, 3472, 3920, 4340, 5488, 6076, 6860, 7595, 8680, 10633, 12152, 13720, 15190, 17360, 21266, 24304, 27440, 30380, 42532, 53165, 60760, 85064, 106330, 121520, 170128, 212660, 425320, 850640]

約数ペア:

[(1, 850640), (2, 425320), (4, 212660), (5, 170128), (7, 121520), (8, 106330), (10, 85064), (14, 60760), (16, 53165), (20, 42532), (28, 30380), (31, 27440), (35, 24304), (40, 21266), (49, 17360), (56, 15190), (62, 13720), (70, 12152), (80, 10633), (98, 8680), (112, 7595), (124, 6860), (140, 6076), (155, 5488), (196, 4340), (217, 3920), (245, 3472), (248, 3430), (280, 3038), (310, 2744), (343, 2480), (392, 2170), (434, 1960), (490, 1736), (496, 1715), (560, 1519), (620, 1372), (686, 1240), (784, 1085), (868, 980)]