1898235

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:169

約数の個数: 40

約数和(自身を含む): 3513840

約数和(自身を除く): 1615605

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 109, 129, 135, 215, 327, 387, 405, 545, 645, 981, 1161, 1635, 1935, 2943, 3483, 4687, 4905, 5805, 8829, 14061, 14715, 17415, 23435, 42183, 44145, 70305, 126549, 210915, 379647, 632745, 1898235]

約数ペア:

[(1, 1898235), (3, 632745), (5, 379647), (9, 210915), (15, 126549), (27, 70305), (43, 44145), (45, 42183), (81, 23435), (109, 17415), (129, 14715), (135, 14061), (215, 8829), (327, 5805), (387, 4905), (405, 4687), (545, 3483), (645, 2943), (981, 1935), (1161, 1635)]