19825520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1733}}^1$

素因数の和:1770

約数の個数: 80

約数和(自身を含む): 54184032

約数和(自身を除く): 34358512

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 1733, 2288, 2860, 3466, 5720, 6932, 8665, 11440, 13864, 17330, 19063, 22529, 27728, 34660, 38126, 45058, 69320, 76252, 90116, 95315, 112645, 138640, 152504, 180232, 190630, 225290, 247819, 305008, 360464, 381260, 450580, 495638, 762520, 901160, 991276, 1239095, 1525040, 1802320, 1982552, 2478190, 3965104, 4956380, 9912760, 19825520]

約数ペア:

[(1, 19825520), (2, 9912760), (4, 4956380), (5, 3965104), (8, 2478190), (10, 1982552), (11, 1802320), (13, 1525040), (16, 1239095), (20, 991276), (22, 901160), (26, 762520), (40, 495638), (44, 450580), (52, 381260), (55, 360464), (65, 305008), (80, 247819), (88, 225290), (104, 190630), (110, 180232), (130, 152504), (143, 138640), (176, 112645), (208, 95315), (220, 90116), (260, 76252), (286, 69320), (440, 45058), (520, 38126), (572, 34660), (715, 27728), (880, 22529), (1040, 19063), (1144, 17330), (1430, 13864), (1733, 11440), (2288, 8665), (2860, 6932), (3466, 5720)]