12320840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:654

約数の個数: 64

約数和(自身を含む): 32140800

約数和(自身を除く): 19819960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 557, 632, 790, 1106, 1114, 1580, 2212, 2228, 2765, 2785, 3160, 3899, 4424, 4456, 5530, 5570, 7798, 11060, 11140, 15596, 19495, 22120, 22280, 31192, 38990, 44003, 77980, 88006, 155960, 176012, 220015, 308021, 352024, 440030, 616042, 880060, 1232084, 1540105, 1760120, 2464168, 3080210, 6160420, 12320840]

約数ペア:

[(1, 12320840), (2, 6160420), (4, 3080210), (5, 2464168), (7, 1760120), (8, 1540105), (10, 1232084), (14, 880060), (20, 616042), (28, 440030), (35, 352024), (40, 308021), (56, 220015), (70, 176012), (79, 155960), (140, 88006), (158, 77980), (280, 44003), (316, 38990), (395, 31192), (553, 22280), (557, 22120), (632, 19495), (790, 15596), (1106, 11140), (1114, 11060), (1580, 7798), (2212, 5570), (2228, 5530), (2765, 4456), (2785, 4424), (3160, 3899)]