181383880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:287

約数の個数: 128

約数和(自身を含む): 462672000

約数和(自身を除く): 281288120

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 101, 136, 139, 152, 170, 190, 202, 278, 323, 340, 380, 404, 505, 556, 646, 680, 695, 760, 808, 1010, 1112, 1292, 1390, 1615, 1717, 1919, 2020, 2363, 2584, 2641, 2780, 3230, 3434, 3838, 4040, 4726, 5282, 5560, 6460, 6868, 7676, 8585, 9452, 9595, 10564, 11815, 12920, 13205, 13736, 14039, 15352, 17170, 18904, 19190, 21128, 23630, 26410, 28078, 32623, 34340, 38380, 44897, 47260, 52820, 56156, 65246, 68680, 70195, 76760, 89794, 94520, 105640, 112312, 130492, 140390, 163115, 179588, 224485, 238663, 260984, 266741, 280780, 326230, 359176, 448970, 477326, 533482, 561560, 652460, 897940, 954652, 1066964, 1193315, 1304920, 1333705, 1795880, 1909304, 2133928, 2386630, 2667410, 4534597, 4773260, 5334820, 9069194, 9546520, 10669640, 18138388, 22672985, 36276776, 45345970, 90691940, 181383880]

約数ペア:

[(1, 181383880), (2, 90691940), (4, 45345970), (5, 36276776), (8, 22672985), (10, 18138388), (17, 10669640), (19, 9546520), (20, 9069194), (34, 5334820), (38, 4773260), (40, 4534597), (68, 2667410), (76, 2386630), (85, 2133928), (95, 1909304), (101, 1795880), (136, 1333705), (139, 1304920), (152, 1193315), (170, 1066964), (190, 954652), (202, 897940), (278, 652460), (323, 561560), (340, 533482), (380, 477326), (404, 448970), (505, 359176), (556, 326230), (646, 280780), (680, 266741), (695, 260984), (760, 238663), (808, 224485), (1010, 179588), (1112, 163115), (1292, 140390), (1390, 130492), (1615, 112312), (1717, 105640), (1919, 94520), (2020, 89794), (2363, 76760), (2584, 70195), (2641, 68680), (2780, 65246), (3230, 56156), (3434, 52820), (3838, 47260), (4040, 44897), (4726, 38380), (5282, 34340), (5560, 32623), (6460, 28078), (6868, 26410), (7676, 23630), (8585, 21128), (9452, 19190), (9595, 18904), (10564, 17170), (11815, 15352), (12920, 14039), (13205, 13736)]