281259280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:237

約数の個数: 160

約数和(自身を含む): 731381760

約数和(自身を除く): 450122480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 47, 62, 76, 80, 94, 95, 124, 127, 152, 155, 188, 190, 235, 248, 254, 304, 310, 376, 380, 470, 496, 508, 589, 620, 635, 752, 760, 893, 940, 1016, 1178, 1240, 1270, 1457, 1520, 1786, 1880, 2032, 2356, 2413, 2480, 2540, 2914, 2945, 3572, 3760, 3937, 4465, 4712, 4826, 5080, 5828, 5890, 5969, 7144, 7285, 7874, 8930, 9424, 9652, 10160, 11656, 11780, 11938, 12065, 14288, 14570, 15748, 17860, 19304, 19685, 23312, 23560, 23876, 24130, 27683, 29140, 29845, 31496, 35720, 38608, 39370, 47120, 47752, 48260, 55366, 58280, 59690, 62992, 71440, 74803, 78740, 95504, 96520, 110732, 113411, 116560, 119380, 138415, 149606, 157480, 185039, 193040, 221464, 226822, 238760, 276830, 299212, 314960, 370078, 374015, 442928, 453644, 477520, 553660, 567055, 598424, 740156, 748030, 907288, 925195, 1107320, 1134110, 1196848, 1480312, 1496060, 1814576, 1850390, 2214640, 2268220, 2960624, 2992120, 3515741, 3700780, 4536440, 5984240, 7031482, 7401560, 9072880, 14062964, 14803120, 17578705, 28125928, 35157410, 56251856, 70314820, 140629640, 281259280]

約数ペア:

[(1, 281259280), (2, 140629640), (4, 70314820), (5, 56251856), (8, 35157410), (10, 28125928), (16, 17578705), (19, 14803120), (20, 14062964), (31, 9072880), (38, 7401560), (40, 7031482), (47, 5984240), (62, 4536440), (76, 3700780), (80, 3515741), (94, 2992120), (95, 2960624), (124, 2268220), (127, 2214640), (152, 1850390), (155, 1814576), (188, 1496060), (190, 1480312), (235, 1196848), (248, 1134110), (254, 1107320), (304, 925195), (310, 907288), (376, 748030), (380, 740156), (470, 598424), (496, 567055), (508, 553660), (589, 477520), (620, 453644), (635, 442928), (752, 374015), (760, 370078), (893, 314960), (940, 299212), (1016, 276830), (1178, 238760), (1240, 226822), (1270, 221464), (1457, 193040), (1520, 185039), (1786, 157480), (1880, 149606), (2032, 138415), (2356, 119380), (2413, 116560), (2480, 113411), (2540, 110732), (2914, 96520), (2945, 95504), (3572, 78740), (3760, 74803), (3937, 71440), (4465, 62992), (4712, 59690), (4826, 58280), (5080, 55366), (5828, 48260), (5890, 47752), (5969, 47120), (7144, 39370), (7285, 38608), (7874, 35720), (8930, 31496), (9424, 29845), (9652, 29140), (10160, 27683), (11656, 24130), (11780, 23876), (11938, 23560), (12065, 23312), (14288, 19685), (14570, 19304), (15748, 17860)]