399071680

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:883

約数の個数: 168

約数和(自身を含む): 1142487936

約数和(自身を除く): 743416256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 320, 392, 434, 448, 490, 496, 560, 620, 784, 821, 868, 980, 992, 1085, 1120, 1240, 1519, 1568, 1642, 1736, 1960, 1984, 2170, 2240, 2480, 3038, 3136, 3284, 3472, 3920, 4105, 4340, 4960, 5747, 6076, 6568, 6944, 7595, 7840, 8210, 8680, 9920, 11494, 12152, 13136, 13888, 15190, 15680, 16420, 17360, 22988, 24304, 25451, 26272, 28735, 30380, 32840, 34720, 40229, 45976, 48608, 50902, 52544, 57470, 60760, 65680, 69440, 80458, 91952, 97216, 101804, 114940, 121520, 127255, 131360, 160916, 178157, 183904, 201145, 203608, 229880, 243040, 254510, 262720, 321832, 356314, 367808, 402290, 407216, 459760, 486080, 509020, 643664, 712628, 804580, 814432, 890785, 919520, 1018040, 1247099, 1287328, 1425256, 1609160, 1628864, 1781570, 1839040, 2036080, 2494198, 2574656, 2850512, 3218320, 3563140, 4072160, 4988396, 5701024, 6235495, 6436640, 7126280, 8144320, 9976792, 11402048, 12470990, 12873280, 14252560, 19953584, 24941980, 28505120, 39907168, 49883960, 57010240, 79814336, 99767920, 199535840, 399071680]

約数ペア:

[(1, 399071680), (2, 199535840), (4, 99767920), (5, 79814336), (7, 57010240), (8, 49883960), (10, 39907168), (14, 28505120), (16, 24941980), (20, 19953584), (28, 14252560), (31, 12873280), (32, 12470990), (35, 11402048), (40, 9976792), (49, 8144320), (56, 7126280), (62, 6436640), (64, 6235495), (70, 5701024), (80, 4988396), (98, 4072160), (112, 3563140), (124, 3218320), (140, 2850512), (155, 2574656), (160, 2494198), (196, 2036080), (217, 1839040), (224, 1781570), (245, 1628864), (248, 1609160), (280, 1425256), (310, 1287328), (320, 1247099), (392, 1018040), (434, 919520), (448, 890785), (490, 814432), (496, 804580), (560, 712628), (620, 643664), (784, 509020), (821, 486080), (868, 459760), (980, 407216), (992, 402290), (1085, 367808), (1120, 356314), (1240, 321832), (1519, 262720), (1568, 254510), (1642, 243040), (1736, 229880), (1960, 203608), (1984, 201145), (2170, 183904), (2240, 178157), (2480, 160916), (3038, 131360), (3136, 127255), (3284, 121520), (3472, 114940), (3920, 101804), (4105, 97216), (4340, 91952), (4960, 80458), (5747, 69440), (6076, 65680), (6568, 60760), (6944, 57470), (7595, 52544), (7840, 50902), (8210, 48608), (8680, 45976), (9920, 40229), (11494, 34720), (12152, 32840), (13136, 30380), (13888, 28735), (15190, 26272), (15680, 25451), (16420, 24304), (17360, 22988)]