212811720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{161221}}^1$

素因数の和:161246

約数の個数: 64

約数和(自身を含む): 696479040

約数和(自身を除く): 483667320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 161221, 322442, 483663, 644884, 806105, 967326, 1289768, 1612210, 1773431, 1934652, 2418315, 3224420, 3546862, 3869304, 4836630, 5320293, 6448840, 7093724, 8867155, 9673260, 10640586, 14187448, 17734310, 19346520, 21281172, 26601465, 35468620, 42562344, 53202930, 70937240, 106405860, 212811720]

約数ペア:

[(1, 212811720), (2, 106405860), (3, 70937240), (4, 53202930), (5, 42562344), (6, 35468620), (8, 26601465), (10, 21281172), (11, 19346520), (12, 17734310), (15, 14187448), (20, 10640586), (22, 9673260), (24, 8867155), (30, 7093724), (33, 6448840), (40, 5320293), (44, 4836630), (55, 3869304), (60, 3546862), (66, 3224420), (88, 2418315), (110, 1934652), (120, 1773431), (132, 1612210), (165, 1289768), (220, 967326), (264, 806105), (330, 644884), (440, 483663), (660, 322442), (1320, 161221)]