20424300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5237}}^1$

素因数の和:5267

約数の個数: 72

約数和(自身を含む): 63652176

約数和(自身を除く): 43227876

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5237, 10474, 15711, 20948, 26185, 31422, 52370, 62844, 68081, 78555, 104740, 130925, 136162, 157110, 204243, 261850, 272324, 314220, 340405, 392775, 408486, 523700, 680810, 785550, 816972, 1021215, 1361620, 1571100, 1702025, 2042430, 3404050, 4084860, 5106075, 6808100, 10212150, 20424300]

約数ペア:

[(1, 20424300), (2, 10212150), (3, 6808100), (4, 5106075), (5, 4084860), (6, 3404050), (10, 2042430), (12, 1702025), (13, 1571100), (15, 1361620), (20, 1021215), (25, 816972), (26, 785550), (30, 680810), (39, 523700), (50, 408486), (52, 392775), (60, 340405), (65, 314220), (75, 272324), (78, 261850), (100, 204243), (130, 157110), (150, 136162), (156, 130925), (195, 104740), (260, 78555), (300, 68081), (325, 62844), (390, 52370), (650, 31422), (780, 26185), (975, 20948), (1300, 15711), (1950, 10474), (3900, 5237)]