20199256

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^3\times {\mathrm{271}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 47784960

約数和(自身を除く): 27585704

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 271, 308, 484, 542, 616, 847, 968, 1084, 1331, 1694, 1897, 2168, 2662, 2981, 3388, 3794, 5324, 5962, 6776, 7588, 9317, 10648, 11924, 15176, 18634, 20867, 23848, 32791, 37268, 41734, 65582, 74536, 83468, 131164, 166936, 229537, 262328, 360701, 459074, 721402, 918148, 1442804, 1836296, 2524907, 2885608, 5049814, 10099628, 20199256]

約数ペア:

[(1, 20199256), (2, 10099628), (4, 5049814), (7, 2885608), (8, 2524907), (11, 1836296), (14, 1442804), (22, 918148), (28, 721402), (44, 459074), (56, 360701), (77, 262328), (88, 229537), (121, 166936), (154, 131164), (242, 83468), (271, 74536), (308, 65582), (484, 41734), (542, 37268), (616, 32791), (847, 23848), (968, 20867), (1084, 18634), (1331, 15176), (1694, 11924), (1897, 10648), (2168, 9317), (2662, 7588), (2981, 6776), (3388, 5962), (3794, 5324)]