205678420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:385

約数の個数: 96

約数和(自身を含む): 481178880

約数和(自身を除く): 275500460

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 101, 115, 190, 202, 230, 233, 380, 404, 437, 460, 466, 505, 874, 932, 1010, 1165, 1748, 1919, 2020, 2185, 2323, 2330, 3838, 4370, 4427, 4646, 4660, 5359, 7676, 8740, 8854, 9292, 9595, 10718, 11615, 17708, 19190, 21436, 22135, 23230, 23533, 26795, 38380, 44137, 44270, 46460, 47066, 53590, 88274, 88540, 94132, 101821, 107180, 117665, 176548, 203642, 220685, 235330, 407284, 441370, 447127, 470660, 509105, 541259, 882740, 894254, 1018210, 1082518, 1788508, 2036420, 2165036, 2235635, 2706295, 4471270, 5412590, 8942540, 10283921, 10825180, 20567842, 41135684, 51419605, 102839210, 205678420]

約数ペア:

[(1, 205678420), (2, 102839210), (4, 51419605), (5, 41135684), (10, 20567842), (19, 10825180), (20, 10283921), (23, 8942540), (38, 5412590), (46, 4471270), (76, 2706295), (92, 2235635), (95, 2165036), (101, 2036420), (115, 1788508), (190, 1082518), (202, 1018210), (230, 894254), (233, 882740), (380, 541259), (404, 509105), (437, 470660), (460, 447127), (466, 441370), (505, 407284), (874, 235330), (932, 220685), (1010, 203642), (1165, 176548), (1748, 117665), (1919, 107180), (2020, 101821), (2185, 94132), (2323, 88540), (2330, 88274), (3838, 53590), (4370, 47066), (4427, 46460), (4646, 44270), (4660, 44137), (5359, 38380), (7676, 26795), (8740, 23533), (8854, 23230), (9292, 22135), (9595, 21436), (10718, 19190), (11615, 17708)]