18972380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4673}}^1$

素因数の和:4718

約数の個数: 48

約数和(自身を含む): 47113920

約数和(自身を除く): 28141540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4673, 9346, 18692, 23365, 32711, 46730, 65422, 93460, 130844, 135517, 163555, 271034, 327110, 542068, 654220, 677585, 948619, 1355170, 1897238, 2710340, 3794476, 4743095, 9486190, 18972380]

約数ペア:

[(1, 18972380), (2, 9486190), (4, 4743095), (5, 3794476), (7, 2710340), (10, 1897238), (14, 1355170), (20, 948619), (28, 677585), (29, 654220), (35, 542068), (58, 327110), (70, 271034), (116, 163555), (140, 135517), (145, 130844), (203, 93460), (290, 65422), (406, 46730), (580, 32711), (812, 23365), (1015, 18692), (2030, 9346), (4060, 4673)]