123432440

素因数分解:

$2^3\times 5^1\times {\mathrm{1553}}^1\times {\mathrm{1987}}^1$

素因数の和:3551

約数の個数: 32

約数和(自身を含む): 278041680

約数和(自身を除く): 154609240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1553, 1987, 3106, 3974, 6212, 7765, 7948, 9935, 12424, 15530, 15896, 19870, 31060, 39740, 62120, 79480, 3085811, 6171622, 12343244, 15429055, 24686488, 30858110, 61716220, 123432440]

約数ペア:

[(1, 123432440), (2, 61716220), (4, 30858110), (5, 24686488), (8, 15429055), (10, 12343244), (20, 6171622), (40, 3085811), (1553, 79480), (1987, 62120), (3106, 39740), (3974, 31060), (6212, 19870), (7765, 15896), (7948, 15530), (9935, 12424)]