219952820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{4261}}^1$

素因数の和:4388

約数の個数: 48

約数和(自身を含む): 483310800

約数和(自身を除く): 263357980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 89, 116, 145, 178, 290, 356, 445, 580, 890, 1780, 2581, 4261, 5162, 8522, 10324, 12905, 17044, 21305, 25810, 42610, 51620, 85220, 123569, 247138, 379229, 494276, 617845, 758458, 1235690, 1516916, 1896145, 2471380, 3792290, 7584580, 10997641, 21995282, 43990564, 54988205, 109976410, 219952820]

約数ペア:

[(1, 219952820), (2, 109976410), (4, 54988205), (5, 43990564), (10, 21995282), (20, 10997641), (29, 7584580), (58, 3792290), (89, 2471380), (116, 1896145), (145, 1516916), (178, 1235690), (290, 758458), (356, 617845), (445, 494276), (580, 379229), (890, 247138), (1780, 123569), (2581, 85220), (4261, 51620), (5162, 42610), (8522, 25810), (10324, 21305), (12905, 17044)]