123450320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{220447}}^1$

素因数の和:220467

約数の個数: 40

約数和(自身を含む): 328026624

約数和(自身を除く): 204576304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 220447, 440894, 881788, 1102235, 1543129, 1763576, 2204470, 3086258, 3527152, 4408940, 6172516, 7715645, 8817880, 12345032, 15431290, 17635760, 24690064, 30862580, 61725160, 123450320]

約数ペア:

[(1, 123450320), (2, 61725160), (4, 30862580), (5, 24690064), (7, 17635760), (8, 15431290), (10, 12345032), (14, 8817880), (16, 7715645), (20, 6172516), (28, 4408940), (35, 3527152), (40, 3086258), (56, 2204470), (70, 1763576), (80, 1543129), (112, 1102235), (140, 881788), (280, 440894), (560, 220447)]