30485980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3067}}^1$

素因数の和:3154

約数の個数: 48

約数和(自身を含む): 74221056

約数和(自身を除く): 43735076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 3067, 4970, 6134, 9940, 12268, 15335, 21469, 30670, 42938, 61340, 85876, 107345, 214690, 217757, 429380, 435514, 871028, 1088785, 1524299, 2177570, 3048598, 4355140, 6097196, 7621495, 15242990, 30485980]

約数ペア:

[(1, 30485980), (2, 15242990), (4, 7621495), (5, 6097196), (7, 4355140), (10, 3048598), (14, 2177570), (20, 1524299), (28, 1088785), (35, 871028), (70, 435514), (71, 429380), (140, 217757), (142, 214690), (284, 107345), (355, 85876), (497, 61340), (710, 42938), (994, 30670), (1420, 21469), (1988, 15335), (2485, 12268), (3067, 9940), (4970, 6134)]