689227280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{307}}^1$

素因数の和:557

約数の個数: 160

約数和(自身を含む): 1943208960

約数和(自身を除く): 1253981680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 211, 266, 280, 304, 307, 380, 422, 532, 560, 614, 665, 760, 844, 1055, 1064, 1228, 1330, 1477, 1520, 1535, 1688, 2110, 2128, 2149, 2456, 2660, 2954, 3070, 3376, 4009, 4220, 4298, 4912, 5320, 5833, 5908, 6140, 7385, 8018, 8440, 8596, 10640, 10745, 11666, 11816, 12280, 14770, 16036, 16880, 17192, 20045, 21490, 23332, 23632, 24560, 28063, 29165, 29540, 32072, 34384, 40090, 40831, 42980, 46664, 56126, 58330, 59080, 64144, 64777, 80180, 81662, 85960, 93328, 112252, 116660, 118160, 129554, 140315, 160360, 163324, 171920, 204155, 224504, 233320, 259108, 280630, 320720, 323885, 326648, 408310, 449008, 453439, 466640, 518216, 561260, 647770, 653296, 816620, 906878, 1036432, 1122520, 1230763, 1295540, 1633240, 1813756, 2245040, 2267195, 2461526, 2591080, 3266480, 3627512, 4534390, 4923052, 5182160, 6153815, 7255024, 8615341, 9068780, 9846104, 12307630, 17230682, 18137560, 19692208, 24615260, 34461364, 36275120, 43076705, 49230520, 68922728, 86153410, 98461040, 137845456, 172306820, 344613640, 689227280]

約数ペア:

[(1, 689227280), (2, 344613640), (4, 172306820), (5, 137845456), (7, 98461040), (8, 86153410), (10, 68922728), (14, 49230520), (16, 43076705), (19, 36275120), (20, 34461364), (28, 24615260), (35, 19692208), (38, 18137560), (40, 17230682), (56, 12307630), (70, 9846104), (76, 9068780), (80, 8615341), (95, 7255024), (112, 6153815), (133, 5182160), (140, 4923052), (152, 4534390), (190, 3627512), (211, 3266480), (266, 2591080), (280, 2461526), (304, 2267195), (307, 2245040), (380, 1813756), (422, 1633240), (532, 1295540), (560, 1230763), (614, 1122520), (665, 1036432), (760, 906878), (844, 816620), (1055, 653296), (1064, 647770), (1228, 561260), (1330, 518216), (1477, 466640), (1520, 453439), (1535, 449008), (1688, 408310), (2110, 326648), (2128, 323885), (2149, 320720), (2456, 280630), (2660, 259108), (2954, 233320), (3070, 224504), (3376, 204155), (4009, 171920), (4220, 163324), (4298, 160360), (4912, 140315), (5320, 129554), (5833, 118160), (5908, 116660), (6140, 112252), (7385, 93328), (8018, 85960), (8440, 81662), (8596, 80180), (10640, 64777), (10745, 64144), (11666, 59080), (11816, 58330), (12280, 56126), (14770, 46664), (16036, 42980), (16880, 40831), (17192, 40090), (20045, 34384), (21490, 32072), (23332, 29540), (23632, 29165), (24560, 28063)]