20174496975

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{78173}}^1$

素因数の和:78257

約数の個数: 72

約数和(自身を含む): 38309012352

約数和(自身を除く): 18134515377

約数列:

[1, 3, 5, 9, 15, 25, 31, 37, 45, 75, 93, 111, 155, 185, 225, 279, 333, 465, 555, 775, 925, 1147, 1395, 1665, 2325, 2775, 3441, 5735, 6975, 8325, 10323, 17205, 28675, 51615, 78173, 86025, 234519, 258075, 390865, 703557, 1172595, 1954325, 2423363, 2892401, 3517785, 5862975, 7270089, 8677203, 12116815, 14462005, 17588925, 21810267, 26031609, 36350445, 43386015, 60584075, 72310025, 89664431, 109051335, 130158045, 181752225, 216930075, 268993293, 448322155, 545256675, 650790225, 806979879, 1344966465, 2241610775, 4034899395, 6724832325, 20174496975]

約数ペア:

[(1, 20174496975), (3, 6724832325), (5, 4034899395), (9, 2241610775), (15, 1344966465), (25, 806979879), (31, 650790225), (37, 545256675), (45, 448322155), (75, 268993293), (93, 216930075), (111, 181752225), (155, 130158045), (185, 109051335), (225, 89664431), (279, 72310025), (333, 60584075), (465, 43386015), (555, 36350445), (775, 26031609), (925, 21810267), (1147, 17588925), (1395, 14462005), (1665, 12116815), (2325, 8677203), (2775, 7270089), (3441, 5862975), (5735, 3517785), (6975, 2892401), (8325, 2423363), (10323, 1954325), (17205, 1172595), (28675, 703557), (51615, 390865), (78173, 258075), (86025, 234519)]