638049285

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{152461}}^1$

素因数の和:152506

約数の個数: 32

約数和(自身を含む): 1170908160

約数和(自身を除く): 532858875

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 152461, 457383, 762305, 1372149, 2286915, 4116447, 4726291, 6860745, 14178873, 20582235, 23631455, 42536619, 70894365, 127609857, 212683095, 638049285]

約数ペア:

[(1, 638049285), (3, 212683095), (5, 127609857), (9, 70894365), (15, 42536619), (27, 23631455), (31, 20582235), (45, 14178873), (93, 6860745), (135, 4726291), (155, 4116447), (279, 2286915), (465, 1372149), (837, 762305), (1395, 457383), (4185, 152461)]