201621775

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 271232640

約数和(自身を除く): 69610865

約数列:

[1, 5, 25, 29, 47, 61, 97, 145, 235, 305, 485, 725, 1175, 1363, 1525, 1769, 2425, 2813, 2867, 4559, 5917, 6815, 8845, 14065, 14335, 22795, 29585, 34075, 44225, 70325, 71675, 83143, 113975, 132211, 147925, 171593, 278099, 415715, 661055, 857965, 1390495, 2078575, 3305275, 4289825, 6952475, 8064871, 40324355, 201621775]

約数ペア:

[(1, 201621775), (5, 40324355), (25, 8064871), (29, 6952475), (47, 4289825), (61, 3305275), (97, 2078575), (145, 1390495), (235, 857965), (305, 661055), (485, 415715), (725, 278099), (1175, 171593), (1363, 147925), (1525, 132211), (1769, 113975), (2425, 83143), (2813, 71675), (2867, 70325), (4559, 44225), (5917, 34075), (6815, 29585), (8845, 22795), (14065, 14335)]