30493820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1567}}^1$

素因数の和:1722

約数の個数: 48

約数和(自身を含む): 73758720

約数和(自身を除く): 43264900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1567, 1946, 2780, 3134, 3892, 4865, 6268, 7835, 9730, 10969, 15670, 19460, 21938, 31340, 43876, 54845, 109690, 217813, 219380, 435626, 871252, 1089065, 1524691, 2178130, 3049382, 4356260, 6098764, 7623455, 15246910, 30493820]

約数ペア:

[(1, 30493820), (2, 15246910), (4, 7623455), (5, 6098764), (7, 4356260), (10, 3049382), (14, 2178130), (20, 1524691), (28, 1089065), (35, 871252), (70, 435626), (139, 219380), (140, 217813), (278, 109690), (556, 54845), (695, 43876), (973, 31340), (1390, 21938), (1567, 19460), (1946, 15670), (2780, 10969), (3134, 9730), (3892, 7835), (4865, 6268)]