20072800

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2281}}^1$

素因数の和:2312

約数の個数: 72

約数和(自身を含む): 53480952

約数和(自身を除く): 33408152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 160, 176, 200, 220, 275, 352, 400, 440, 550, 800, 880, 1100, 1760, 2200, 2281, 4400, 4562, 8800, 9124, 11405, 18248, 22810, 25091, 36496, 45620, 50182, 57025, 72992, 91240, 100364, 114050, 125455, 182480, 200728, 228100, 250910, 364960, 401456, 456200, 501820, 627275, 802912, 912400, 1003640, 1254550, 1824800, 2007280, 2509100, 4014560, 5018200, 10036400, 20072800]

約数ペア:

[(1, 20072800), (2, 10036400), (4, 5018200), (5, 4014560), (8, 2509100), (10, 2007280), (11, 1824800), (16, 1254550), (20, 1003640), (22, 912400), (25, 802912), (32, 627275), (40, 501820), (44, 456200), (50, 401456), (55, 364960), (80, 250910), (88, 228100), (100, 200728), (110, 182480), (160, 125455), (176, 114050), (200, 100364), (220, 91240), (275, 72992), (352, 57025), (400, 50182), (440, 45620), (550, 36496), (800, 25091), (880, 22810), (1100, 18248), (1760, 11405), (2200, 9124), (2281, 8800), (4400, 4562)]