18404867475

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{661}}^1\times {\mathrm{2633}}^1$

素因数の和:3357

約数の個数: 72

約数和(自身を含む): 33730287552

約数和(自身を除く): 15325420077

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 661, 705, 1175, 1983, 2115, 2633, 3305, 3525, 5949, 7899, 9915, 10575, 13165, 16525, 23697, 29745, 31067, 39495, 49575, 65825, 93201, 118485, 123751, 148725, 155335, 197475, 279603, 371253, 466005, 592425, 618755, 776675, 1113759, 1398015, 1740413, 1856265, 2330025, 3093775, 5221239, 5568795, 6990075, 8702065, 9281325, 15663717, 26106195, 27843975, 43510325, 78318585, 81799411, 130530975, 245398233, 391592925, 408997055, 736194699, 1226991165, 2044985275, 3680973495, 6134955825, 18404867475]

約数ペア:

[(1, 18404867475), (3, 6134955825), (5, 3680973495), (9, 2044985275), (15, 1226991165), (25, 736194699), (45, 408997055), (47, 391592925), (75, 245398233), (141, 130530975), (225, 81799411), (235, 78318585), (423, 43510325), (661, 27843975), (705, 26106195), (1175, 15663717), (1983, 9281325), (2115, 8702065), (2633, 6990075), (3305, 5568795), (3525, 5221239), (5949, 3093775), (7899, 2330025), (9915, 1856265), (10575, 1740413), (13165, 1398015), (16525, 1113759), (23697, 776675), (29745, 618755), (31067, 592425), (39495, 466005), (49575, 371253), (65825, 279603), (93201, 197475), (118485, 155335), (123751, 148725)]