212020175

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 290918880

約数和(自身を除く): 78898705

約数列:

[1, 5, 17, 25, 37, 85, 97, 139, 185, 425, 485, 629, 695, 925, 1649, 2363, 2425, 3145, 3475, 3589, 5143, 8245, 11815, 13483, 15725, 17945, 25715, 41225, 59075, 61013, 67415, 87431, 89725, 128575, 229211, 305065, 337075, 437155, 498871, 1146055, 1525325, 2185775, 2494355, 5730275, 8480807, 12471775, 42404035, 212020175]

約数ペア:

[(1, 212020175), (5, 42404035), (17, 12471775), (25, 8480807), (37, 5730275), (85, 2494355), (97, 2185775), (139, 1525325), (185, 1146055), (425, 498871), (485, 437155), (629, 337075), (695, 305065), (925, 229211), (1649, 128575), (2363, 89725), (2425, 87431), (3145, 67415), (3475, 61013), (3589, 59075), (5143, 41225), (8245, 25715), (11815, 17945), (13483, 15725)]