81291280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8539}}^1$

素因数の和:8576

約数の個数: 80

約数和(自身を含む): 228735360

約数和(自身を除く): 147444080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2380, 4760, 8539, 9520, 17078, 34156, 42695, 59773, 68312, 85390, 119546, 136624, 145163, 170780, 239092, 290326, 298865, 341560, 478184, 580652, 597730, 683120, 725815, 956368, 1016141, 1161304, 1195460, 1451630, 2032282, 2322608, 2390920, 2903260, 4064564, 4781840, 5080705, 5806520, 8129128, 10161410, 11613040, 16258256, 20322820, 40645640, 81291280]

約数ペア:

[(1, 81291280), (2, 40645640), (4, 20322820), (5, 16258256), (7, 11613040), (8, 10161410), (10, 8129128), (14, 5806520), (16, 5080705), (17, 4781840), (20, 4064564), (28, 2903260), (34, 2390920), (35, 2322608), (40, 2032282), (56, 1451630), (68, 1195460), (70, 1161304), (80, 1016141), (85, 956368), (112, 725815), (119, 683120), (136, 597730), (140, 580652), (170, 478184), (238, 341560), (272, 298865), (280, 290326), (340, 239092), (476, 170780), (560, 145163), (595, 136624), (680, 119546), (952, 85390), (1190, 68312), (1360, 59773), (1904, 42695), (2380, 34156), (4760, 17078), (8539, 9520)]