878702020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{62143}}^1$

素因数の和:62260

約数の個数: 48

約数和(自身を含む): 2129799168

約数和(自身を除く): 1251097148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 7070, 14140, 62143, 124286, 248572, 310715, 435001, 621430, 870002, 1242860, 1740004, 2175005, 4350010, 6276443, 8700020, 12552886, 25105772, 31382215, 43935101, 62764430, 87870202, 125528860, 175740404, 219675505, 439351010, 878702020]

約数ペア:

[(1, 878702020), (2, 439351010), (4, 219675505), (5, 175740404), (7, 125528860), (10, 87870202), (14, 62764430), (20, 43935101), (28, 31382215), (35, 25105772), (70, 12552886), (101, 8700020), (140, 6276443), (202, 4350010), (404, 2175005), (505, 1740004), (707, 1242860), (1010, 870002), (1414, 621430), (2020, 435001), (2828, 310715), (3535, 248572), (7070, 124286), (14140, 62143)]