18763780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1327}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 45513216

約数和(自身を除く): 26749436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1327, 1414, 2020, 2654, 2828, 3535, 5308, 6635, 7070, 9289, 13270, 14140, 18578, 26540, 37156, 46445, 92890, 134027, 185780, 268054, 536108, 670135, 938189, 1340270, 1876378, 2680540, 3752756, 4690945, 9381890, 18763780]

約数ペア:

[(1, 18763780), (2, 9381890), (4, 4690945), (5, 3752756), (7, 2680540), (10, 1876378), (14, 1340270), (20, 938189), (28, 670135), (35, 536108), (70, 268054), (101, 185780), (140, 134027), (202, 92890), (404, 46445), (505, 37156), (707, 26540), (1010, 18578), (1327, 14140), (1414, 13270), (2020, 9289), (2654, 7070), (2828, 6635), (3535, 5308)]