20106788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 40830720

約数和(自身を除く): 20723932

約数列:

[1, 2, 4, 13, 19, 26, 38, 47, 52, 76, 94, 188, 247, 433, 494, 611, 866, 893, 988, 1222, 1732, 1786, 2444, 3572, 5629, 8227, 11258, 11609, 16454, 20351, 22516, 23218, 32908, 40702, 46436, 81404, 106951, 213902, 264563, 386669, 427804, 529126, 773338, 1058252, 1546676, 5026697, 10053394, 20106788]

約数ペア:

[(1, 20106788), (2, 10053394), (4, 5026697), (13, 1546676), (19, 1058252), (26, 773338), (38, 529126), (47, 427804), (52, 386669), (76, 264563), (94, 213902), (188, 106951), (247, 81404), (433, 46436), (494, 40702), (611, 32908), (866, 23218), (893, 22516), (988, 20351), (1222, 16454), (1732, 11609), (1786, 11258), (2444, 8227), (3572, 5629)]