20831160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24799}}^1$

素因数の和:24820

約数の個数: 64

約数和(自身を含む): 71424000

約数和(自身を除く): 50592840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24799, 49598, 74397, 99196, 123995, 148794, 173593, 198392, 247990, 297588, 347186, 371985, 495980, 520779, 595176, 694372, 743970, 867965, 991960, 1041558, 1388744, 1487940, 1735930, 2083116, 2603895, 2975880, 3471860, 4166232, 5207790, 6943720, 10415580, 20831160]

約数ペア:

[(1, 20831160), (2, 10415580), (3, 6943720), (4, 5207790), (5, 4166232), (6, 3471860), (7, 2975880), (8, 2603895), (10, 2083116), (12, 1735930), (14, 1487940), (15, 1388744), (20, 1041558), (21, 991960), (24, 867965), (28, 743970), (30, 694372), (35, 595176), (40, 520779), (42, 495980), (56, 371985), (60, 347186), (70, 297588), (84, 247990), (105, 198392), (120, 173593), (140, 148794), (168, 123995), (210, 99196), (280, 74397), (420, 49598), (840, 24799)]