2621220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^2$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 8495424

約数和(自身を除く): 5874204

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 79, 84, 105, 140, 158, 210, 237, 316, 395, 420, 474, 553, 790, 948, 1106, 1185, 1580, 1659, 2212, 2370, 2765, 3318, 4740, 5530, 6241, 6636, 8295, 11060, 12482, 16590, 18723, 24964, 31205, 33180, 37446, 43687, 62410, 74892, 87374, 93615, 124820, 131061, 174748, 187230, 218435, 262122, 374460, 436870, 524244, 655305, 873740, 1310610, 2621220]

約数ペア:

[(1, 2621220), (2, 1310610), (3, 873740), (4, 655305), (5, 524244), (6, 436870), (7, 374460), (10, 262122), (12, 218435), (14, 187230), (15, 174748), (20, 131061), (21, 124820), (28, 93615), (30, 87374), (35, 74892), (42, 62410), (60, 43687), (70, 37446), (79, 33180), (84, 31205), (105, 24964), (140, 18723), (158, 16590), (210, 12482), (237, 11060), (316, 8295), (395, 6636), (420, 6241), (474, 5530), (553, 4740), (790, 3318), (948, 2765), (1106, 2370), (1185, 2212), (1580, 1659)]