199535840

素因数分解:

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

素因数の和:881

約数の個数: 144

約数和(自身を含む): 566745984

約数和(自身を除く): 367210144

約数列:

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

約数ペア:

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