1640385

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:462

約数の個数: 32

約数和(自身を含む): 3024000

約数和(自身を除く): 1383615

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 419, 435, 783, 1257, 1305, 2095, 3771, 3915, 6285, 11313, 12151, 18855, 36453, 56565, 60755, 109359, 182265, 328077, 546795, 1640385]

約数ペア:

[(1, 1640385), (3, 546795), (5, 328077), (9, 182265), (15, 109359), (27, 60755), (29, 56565), (45, 36453), (87, 18855), (135, 12151), (145, 11313), (261, 6285), (419, 3915), (435, 3771), (783, 2095), (1257, 1305)]