280525280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{149}}^1$

素因数の和:253

約数の個数: 144

約数和(自身を含む): 781552800

約数和(自身を除く): 501027520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 70, 80, 82, 112, 140, 149, 160, 164, 205, 224, 280, 287, 298, 328, 410, 560, 574, 596, 656, 745, 820, 1043, 1120, 1148, 1192, 1312, 1435, 1490, 1640, 1681, 2086, 2296, 2384, 2870, 2980, 3280, 3362, 4172, 4592, 4768, 5215, 5740, 5960, 6109, 6560, 6724, 8344, 8405, 9184, 10430, 11480, 11767, 11920, 12218, 13448, 16688, 16810, 20860, 22960, 23534, 23840, 24436, 26896, 30545, 33376, 33620, 41720, 42763, 45920, 47068, 48872, 53792, 58835, 61090, 67240, 83440, 85526, 94136, 97744, 117670, 122180, 134480, 166880, 171052, 188272, 195488, 213815, 235340, 244360, 250469, 268960, 342104, 376544, 427630, 470680, 488720, 500938, 684208, 855260, 941360, 977440, 1001876, 1252345, 1368416, 1710520, 1753283, 1882720, 2003752, 2504690, 3421040, 3506566, 4007504, 5009380, 6842080, 7013132, 8015008, 8766415, 10018760, 14026264, 17532830, 20037520, 28052528, 35065660, 40075040, 56105056, 70131320, 140262640, 280525280]

約数ペア:

[(1, 280525280), (2, 140262640), (4, 70131320), (5, 56105056), (7, 40075040), (8, 35065660), (10, 28052528), (14, 20037520), (16, 17532830), (20, 14026264), (28, 10018760), (32, 8766415), (35, 8015008), (40, 7013132), (41, 6842080), (56, 5009380), (70, 4007504), (80, 3506566), (82, 3421040), (112, 2504690), (140, 2003752), (149, 1882720), (160, 1753283), (164, 1710520), (205, 1368416), (224, 1252345), (280, 1001876), (287, 977440), (298, 941360), (328, 855260), (410, 684208), (560, 500938), (574, 488720), (596, 470680), (656, 427630), (745, 376544), (820, 342104), (1043, 268960), (1120, 250469), (1148, 244360), (1192, 235340), (1312, 213815), (1435, 195488), (1490, 188272), (1640, 171052), (1681, 166880), (2086, 134480), (2296, 122180), (2384, 117670), (2870, 97744), (2980, 94136), (3280, 85526), (3362, 83440), (4172, 67240), (4592, 61090), (4768, 58835), (5215, 53792), (5740, 48872), (5960, 47068), (6109, 45920), (6560, 42763), (6724, 41720), (8344, 33620), (8405, 33376), (9184, 30545), (10430, 26896), (11480, 24436), (11767, 23840), (11920, 23534), (12218, 22960), (13448, 20860), (16688, 16810)]