20615672

素因数分解:

$2^3\times 7^3\times {\mathrm{11}}^1\times {\mathrm{683}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 28632328

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 154, 196, 308, 343, 392, 539, 616, 683, 686, 1078, 1366, 1372, 2156, 2732, 2744, 3773, 4312, 4781, 5464, 7513, 7546, 9562, 15026, 15092, 19124, 30052, 30184, 33467, 38248, 52591, 60104, 66934, 105182, 133868, 210364, 234269, 267736, 368137, 420728, 468538, 736274, 937076, 1472548, 1874152, 2576959, 2945096, 5153918, 10307836, 20615672]

約数ペア:

[(1, 20615672), (2, 10307836), (4, 5153918), (7, 2945096), (8, 2576959), (11, 1874152), (14, 1472548), (22, 937076), (28, 736274), (44, 468538), (49, 420728), (56, 368137), (77, 267736), (88, 234269), (98, 210364), (154, 133868), (196, 105182), (308, 66934), (343, 60104), (392, 52591), (539, 38248), (616, 33467), (683, 30184), (686, 30052), (1078, 19124), (1366, 15092), (1372, 15026), (2156, 9562), (2732, 7546), (2744, 7513), (3773, 5464), (4312, 4781)]