30708920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{983}}^1$

素因数の和:1076

約数の個数: 64

約数和(自身を含む): 76515840

約数和(自身を除く): 45806920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 983, 1420, 1562, 1966, 2840, 3124, 3905, 3932, 4915, 6248, 7810, 7864, 9830, 10813, 15620, 19660, 21626, 31240, 39320, 43252, 54065, 69793, 86504, 108130, 139586, 216260, 279172, 348965, 432520, 558344, 697930, 767723, 1395860, 1535446, 2791720, 3070892, 3838615, 6141784, 7677230, 15354460, 30708920]

約数ペア:

[(1, 30708920), (2, 15354460), (4, 7677230), (5, 6141784), (8, 3838615), (10, 3070892), (11, 2791720), (20, 1535446), (22, 1395860), (40, 767723), (44, 697930), (55, 558344), (71, 432520), (88, 348965), (110, 279172), (142, 216260), (220, 139586), (284, 108130), (355, 86504), (440, 69793), (568, 54065), (710, 43252), (781, 39320), (983, 31240), (1420, 21626), (1562, 19660), (1966, 15620), (2840, 10813), (3124, 9830), (3905, 7864), (3932, 7810), (4915, 6248)]