19842460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 49351680

約数和(自身を除く): 29509220

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 47, 55, 76, 94, 95, 101, 110, 188, 190, 202, 209, 220, 235, 380, 404, 418, 470, 505, 517, 836, 893, 940, 1010, 1034, 1045, 1111, 1786, 1919, 2020, 2068, 2090, 2222, 2585, 3572, 3838, 4180, 4444, 4465, 4747, 5170, 5555, 7676, 8930, 9494, 9595, 9823, 10340, 11110, 17860, 18988, 19190, 19646, 21109, 22220, 23735, 38380, 39292, 42218, 47470, 49115, 52217, 84436, 90193, 94940, 98230, 104434, 105545, 180386, 196460, 208868, 211090, 261085, 360772, 422180, 450965, 522170, 901930, 992123, 1044340, 1803860, 1984246, 3968492, 4960615, 9921230, 19842460]

約数ペア:

[(1, 19842460), (2, 9921230), (4, 4960615), (5, 3968492), (10, 1984246), (11, 1803860), (19, 1044340), (20, 992123), (22, 901930), (38, 522170), (44, 450965), (47, 422180), (55, 360772), (76, 261085), (94, 211090), (95, 208868), (101, 196460), (110, 180386), (188, 105545), (190, 104434), (202, 98230), (209, 94940), (220, 90193), (235, 84436), (380, 52217), (404, 49115), (418, 47470), (470, 42218), (505, 39292), (517, 38380), (836, 23735), (893, 22220), (940, 21109), (1010, 19646), (1034, 19190), (1045, 18988), (1111, 17860), (1786, 11110), (1919, 10340), (2020, 9823), (2068, 9595), (2090, 9494), (2222, 8930), (2585, 7676), (3572, 5555), (3838, 5170), (4180, 4747), (4444, 4465)]