127123840

素因数分解:

$2^7\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1429}}^1$

素因数の和:1587

約数の個数: 64

約数和(自身を含む): 306306000

約数和(自身を除く): 179182160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 278, 320, 556, 640, 695, 1112, 1390, 1429, 2224, 2780, 2858, 4448, 5560, 5716, 7145, 8896, 11120, 11432, 14290, 17792, 22240, 22864, 28580, 44480, 45728, 57160, 88960, 91456, 114320, 182912, 198631, 228640, 397262, 457280, 794524, 914560, 993155, 1589048, 1986310, 3178096, 3972620, 6356192, 7945240, 12712384, 15890480, 25424768, 31780960, 63561920, 127123840]

約数ペア:

[(1, 127123840), (2, 63561920), (4, 31780960), (5, 25424768), (8, 15890480), (10, 12712384), (16, 7945240), (20, 6356192), (32, 3972620), (40, 3178096), (64, 1986310), (80, 1589048), (128, 993155), (139, 914560), (160, 794524), (278, 457280), (320, 397262), (556, 228640), (640, 198631), (695, 182912), (1112, 114320), (1390, 91456), (1429, 88960), (2224, 57160), (2780, 45728), (2858, 44480), (4448, 28580), (5560, 22864), (5716, 22240), (7145, 17792), (8896, 14290), (11120, 11432)]