19932220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^2$

素因数の和:120

約数の個数: 108

約数和(自身を含む): 54382104

約数和(自身を除く): 34449884

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 43, 44, 49, 55, 70, 77, 86, 98, 110, 140, 154, 172, 196, 215, 220, 245, 301, 308, 385, 430, 473, 490, 539, 602, 770, 860, 946, 980, 1078, 1204, 1505, 1540, 1849, 1892, 2107, 2156, 2365, 2695, 3010, 3311, 3698, 4214, 4730, 5390, 6020, 6622, 7396, 8428, 9245, 9460, 10535, 10780, 12943, 13244, 16555, 18490, 20339, 21070, 23177, 25886, 33110, 36980, 40678, 42140, 46354, 51772, 64715, 66220, 81356, 90601, 92708, 101695, 115885, 129430, 142373, 181202, 203390, 231770, 258860, 284746, 362404, 406780, 453005, 463540, 569492, 711865, 906010, 996611, 1423730, 1812020, 1993222, 2847460, 3986444, 4983055, 9966110, 19932220]

約数ペア:

[(1, 19932220), (2, 9966110), (4, 4983055), (5, 3986444), (7, 2847460), (10, 1993222), (11, 1812020), (14, 1423730), (20, 996611), (22, 906010), (28, 711865), (35, 569492), (43, 463540), (44, 453005), (49, 406780), (55, 362404), (70, 284746), (77, 258860), (86, 231770), (98, 203390), (110, 181202), (140, 142373), (154, 129430), (172, 115885), (196, 101695), (215, 92708), (220, 90601), (245, 81356), (301, 66220), (308, 64715), (385, 51772), (430, 46354), (473, 42140), (490, 40678), (539, 36980), (602, 33110), (770, 25886), (860, 23177), (946, 21070), (980, 20339), (1078, 18490), (1204, 16555), (1505, 13244), (1540, 12943), (1849, 10780), (1892, 10535), (2107, 9460), (2156, 9245), (2365, 8428), (2695, 7396), (3010, 6622), (3311, 6020), (3698, 5390), (4214, 4730)]