8627920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 120

約数和(自身を含む): 24427008

約数和(自身を除く): 15799088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 71, 80, 98, 112, 124, 140, 142, 155, 196, 217, 245, 248, 280, 284, 310, 355, 392, 434, 490, 496, 497, 560, 568, 620, 710, 784, 868, 980, 994, 1085, 1136, 1240, 1420, 1519, 1736, 1960, 1988, 2170, 2201, 2480, 2485, 2840, 3038, 3472, 3479, 3920, 3976, 4340, 4402, 4970, 5680, 6076, 6958, 7595, 7952, 8680, 8804, 9940, 11005, 12152, 13916, 15190, 15407, 17360, 17395, 17608, 19880, 22010, 24304, 27832, 30380, 30814, 34790, 35216, 39760, 44020, 55664, 60760, 61628, 69580, 77035, 88040, 107849, 121520, 123256, 139160, 154070, 176080, 215698, 246512, 278320, 308140, 431396, 539245, 616280, 862792, 1078490, 1232560, 1725584, 2156980, 4313960, 8627920]

約数ペア:

[(1, 8627920), (2, 4313960), (4, 2156980), (5, 1725584), (7, 1232560), (8, 1078490), (10, 862792), (14, 616280), (16, 539245), (20, 431396), (28, 308140), (31, 278320), (35, 246512), (40, 215698), (49, 176080), (56, 154070), (62, 139160), (70, 123256), (71, 121520), (80, 107849), (98, 88040), (112, 77035), (124, 69580), (140, 61628), (142, 60760), (155, 55664), (196, 44020), (217, 39760), (245, 35216), (248, 34790), (280, 30814), (284, 30380), (310, 27832), (355, 24304), (392, 22010), (434, 19880), (490, 17608), (496, 17395), (497, 17360), (560, 15407), (568, 15190), (620, 13916), (710, 12152), (784, 11005), (868, 9940), (980, 8804), (994, 8680), (1085, 7952), (1136, 7595), (1240, 6958), (1420, 6076), (1519, 5680), (1736, 4970), (1960, 4402), (1988, 4340), (2170, 3976), (2201, 3920), (2480, 3479), (2485, 3472), (2840, 3038)]