205628260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 486864000

約数和(自身を除く): 281235740

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 139, 170, 190, 229, 278, 323, 340, 380, 458, 556, 646, 695, 916, 1145, 1292, 1390, 1615, 2290, 2363, 2641, 2780, 3230, 3893, 4351, 4580, 4726, 5282, 6460, 7786, 8702, 9452, 10564, 11815, 13205, 15572, 17404, 19465, 21755, 23630, 26410, 31831, 38930, 43510, 44897, 47260, 52820, 63662, 73967, 77860, 87020, 89794, 127324, 147934, 159155, 179588, 224485, 295868, 318310, 369835, 448970, 541127, 604789, 636620, 739670, 897940, 1082254, 1209578, 1479340, 2164508, 2419156, 2705635, 3023945, 5411270, 6047890, 10281413, 10822540, 12095780, 20562826, 41125652, 51407065, 102814130, 205628260]

約数ペア:

[(1, 205628260), (2, 102814130), (4, 51407065), (5, 41125652), (10, 20562826), (17, 12095780), (19, 10822540), (20, 10281413), (34, 6047890), (38, 5411270), (68, 3023945), (76, 2705635), (85, 2419156), (95, 2164508), (139, 1479340), (170, 1209578), (190, 1082254), (229, 897940), (278, 739670), (323, 636620), (340, 604789), (380, 541127), (458, 448970), (556, 369835), (646, 318310), (695, 295868), (916, 224485), (1145, 179588), (1292, 159155), (1390, 147934), (1615, 127324), (2290, 89794), (2363, 87020), (2641, 77860), (2780, 73967), (3230, 63662), (3893, 52820), (4351, 47260), (4580, 44897), (4726, 43510), (5282, 38930), (6460, 31831), (7786, 26410), (8702, 23630), (9452, 21755), (10564, 19465), (11815, 17404), (13205, 15572)]