15707920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4789}}^1$

素因数の和:4843

約数の個数: 40

約数和(自身を含む): 37419480

約数和(自身を除く): 21711560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 4789, 9578, 19156, 23945, 38312, 47890, 76624, 95780, 191560, 196349, 383120, 392698, 785396, 981745, 1570792, 1963490, 3141584, 3926980, 7853960, 15707920]

約数ペア:

[(1, 15707920), (2, 7853960), (4, 3926980), (5, 3141584), (8, 1963490), (10, 1570792), (16, 981745), (20, 785396), (40, 392698), (41, 383120), (80, 196349), (82, 191560), (164, 95780), (205, 76624), (328, 47890), (410, 38312), (656, 23945), (820, 19156), (1640, 9578), (3280, 4789)]