19966530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1523}}^1$

素因数の和:1575

約数の個数: 64

約数和(自身を含む): 52669440

約数和(自身を除く): 32702910

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 23, 30, 38, 46, 57, 69, 95, 114, 115, 138, 190, 230, 285, 345, 437, 570, 690, 874, 1311, 1523, 2185, 2622, 3046, 4370, 4569, 6555, 7615, 9138, 13110, 15230, 22845, 28937, 35029, 45690, 57874, 70058, 86811, 105087, 144685, 173622, 175145, 210174, 289370, 350290, 434055, 525435, 665551, 868110, 1050870, 1331102, 1996653, 3327755, 3993306, 6655510, 9983265, 19966530]

約数ペア:

[(1, 19966530), (2, 9983265), (3, 6655510), (5, 3993306), (6, 3327755), (10, 1996653), (15, 1331102), (19, 1050870), (23, 868110), (30, 665551), (38, 525435), (46, 434055), (57, 350290), (69, 289370), (95, 210174), (114, 175145), (115, 173622), (138, 144685), (190, 105087), (230, 86811), (285, 70058), (345, 57874), (437, 45690), (570, 35029), (690, 28937), (874, 22845), (1311, 15230), (1523, 13110), (2185, 9138), (2622, 7615), (3046, 6555), (4370, 4569)]