209378960

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1723}}^1$

素因数の和:1781

約数の個数: 120

約数和(自身を含む): 584891136

約数和(自身を除く): 375512176

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, 392, 434, 490, 496, 560, 620, 784, 868, 980, 1085, 1240, 1519, 1723, 1736, 1960, 2170, 2480, 3038, 3446, 3472, 3920, 4340, 6076, 6892, 7595, 8615, 8680, 12061, 12152, 13784, 15190, 17230, 17360, 24122, 24304, 27568, 30380, 34460, 48244, 53413, 60305, 60760, 68920, 84427, 96488, 106826, 120610, 121520, 137840, 168854, 192976, 213652, 241220, 267065, 337708, 373891, 422135, 427304, 482440, 534130, 675416, 747782, 844270, 854608, 964880, 1068260, 1350832, 1495564, 1688540, 1869455, 2136520, 2617237, 2991128, 3377080, 3738910, 4273040, 5234474, 5982256, 6754160, 7477820, 10468948, 13086185, 14955640, 20937896, 26172370, 29911280, 41875792, 52344740, 104689480, 209378960]

約数ペア:

[(1, 209378960), (2, 104689480), (4, 52344740), (5, 41875792), (7, 29911280), (8, 26172370), (10, 20937896), (14, 14955640), (16, 13086185), (20, 10468948), (28, 7477820), (31, 6754160), (35, 5982256), (40, 5234474), (49, 4273040), (56, 3738910), (62, 3377080), (70, 2991128), (80, 2617237), (98, 2136520), (112, 1869455), (124, 1688540), (140, 1495564), (155, 1350832), (196, 1068260), (217, 964880), (245, 854608), (248, 844270), (280, 747782), (310, 675416), (392, 534130), (434, 482440), (490, 427304), (496, 422135), (560, 373891), (620, 337708), (784, 267065), (868, 241220), (980, 213652), (1085, 192976), (1240, 168854), (1519, 137840), (1723, 121520), (1736, 120610), (1960, 106826), (2170, 96488), (2480, 84427), (3038, 68920), (3446, 60760), (3472, 60305), (3920, 53413), (4340, 48244), (6076, 34460), (6892, 30380), (7595, 27568), (8615, 24304), (8680, 24122), (12061, 17360), (12152, 17230), (13784, 15190)]