2156280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 7879680

約数和(自身を除く): 5723400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 151, 168, 170, 204, 210, 238, 255, 280, 302, 340, 357, 408, 420, 453, 476, 510, 595, 604, 680, 714, 755, 840, 906, 952, 1020, 1057, 1190, 1208, 1428, 1510, 1785, 1812, 2040, 2114, 2265, 2380, 2567, 2856, 3020, 3171, 3570, 3624, 4228, 4530, 4760, 5134, 5285, 6040, 6342, 7140, 7701, 8456, 9060, 10268, 10570, 12684, 12835, 14280, 15402, 15855, 17969, 18120, 20536, 21140, 25368, 25670, 30804, 31710, 35938, 38505, 42280, 51340, 53907, 61608, 63420, 71876, 77010, 89845, 102680, 107814, 126840, 143752, 154020, 179690, 215628, 269535, 308040, 359380, 431256, 539070, 718760, 1078140, 2156280]

約数ペア:

[(1, 2156280), (2, 1078140), (3, 718760), (4, 539070), (5, 431256), (6, 359380), (7, 308040), (8, 269535), (10, 215628), (12, 179690), (14, 154020), (15, 143752), (17, 126840), (20, 107814), (21, 102680), (24, 89845), (28, 77010), (30, 71876), (34, 63420), (35, 61608), (40, 53907), (42, 51340), (51, 42280), (56, 38505), (60, 35938), (68, 31710), (70, 30804), (84, 25670), (85, 25368), (102, 21140), (105, 20536), (119, 18120), (120, 17969), (136, 15855), (140, 15402), (151, 14280), (168, 12835), (170, 12684), (204, 10570), (210, 10268), (238, 9060), (255, 8456), (280, 7701), (302, 7140), (340, 6342), (357, 6040), (408, 5285), (420, 5134), (453, 4760), (476, 4530), (510, 4228), (595, 3624), (604, 3570), (680, 3171), (714, 3020), (755, 2856), (840, 2567), (906, 2380), (952, 2265), (1020, 2114), (1057, 2040), (1190, 1812), (1208, 1785), (1428, 1510)]