18248775

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 32140800

約数和(自身を除く): 13892025

約数列:

[1, 3, 5, 15, 23, 25, 69, 71, 75, 115, 149, 213, 345, 355, 447, 575, 745, 1065, 1633, 1725, 1775, 2235, 3427, 3725, 4899, 5325, 8165, 10281, 10579, 11175, 17135, 24495, 31737, 40825, 51405, 52895, 85675, 122475, 158685, 243317, 257025, 264475, 729951, 793425, 1216585, 3649755, 6082925, 18248775]

約数ペア:

[(1, 18248775), (3, 6082925), (5, 3649755), (15, 1216585), (23, 793425), (25, 729951), (69, 264475), (71, 257025), (75, 243317), (115, 158685), (149, 122475), (213, 85675), (345, 52895), (355, 51405), (447, 40825), (575, 31737), (745, 24495), (1065, 17135), (1633, 11175), (1725, 10579), (1775, 10281), (2235, 8165), (3427, 5325), (3725, 4899)]