18394875

素因数分解:

$3^2\times 5^3\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 33729696

約数和(自身を除く): 15334821

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 83, 125, 197, 225, 249, 375, 415, 591, 747, 985, 1125, 1245, 1773, 2075, 2955, 3735, 4925, 6225, 8865, 10375, 14775, 16351, 18675, 24625, 31125, 44325, 49053, 73875, 81755, 93375, 147159, 221625, 245265, 408775, 735795, 1226325, 2043875, 3678975, 6131625, 18394875]

約数ペア:

[(1, 18394875), (3, 6131625), (5, 3678975), (9, 2043875), (15, 1226325), (25, 735795), (45, 408775), (75, 245265), (83, 221625), (125, 147159), (197, 93375), (225, 81755), (249, 73875), (375, 49053), (415, 44325), (591, 31125), (747, 24625), (985, 18675), (1125, 16351), (1245, 14775), (1773, 10375), (2075, 8865), (2955, 6225), (3735, 4925)]