28220280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21379}}^1$

素因数の和:21404

約数の個数: 64

約数和(自身を含む): 92361600

約数和(自身を除く): 64141320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 21379, 42758, 64137, 85516, 106895, 128274, 171032, 213790, 235169, 256548, 320685, 427580, 470338, 513096, 641370, 705507, 855160, 940676, 1175845, 1282740, 1411014, 1881352, 2351690, 2565480, 2822028, 3527535, 4703380, 5644056, 7055070, 9406760, 14110140, 28220280]

約数ペア:

[(1, 28220280), (2, 14110140), (3, 9406760), (4, 7055070), (5, 5644056), (6, 4703380), (8, 3527535), (10, 2822028), (11, 2565480), (12, 2351690), (15, 1881352), (20, 1411014), (22, 1282740), (24, 1175845), (30, 940676), (33, 855160), (40, 705507), (44, 641370), (55, 513096), (60, 470338), (66, 427580), (88, 320685), (110, 256548), (120, 235169), (132, 213790), (165, 171032), (220, 128274), (264, 106895), (330, 85516), (440, 64137), (660, 42758), (1320, 21379)]