18009792020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{8719}}^1$

素因数の和:9009

約数の個数: 96

約数和(自身を含む): 42454540800

約数和(自身を除く): 24444748780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 229, 410, 451, 458, 820, 902, 916, 1145, 1804, 2255, 2290, 2519, 4510, 4580, 5038, 8719, 9020, 9389, 10076, 12595, 17438, 18778, 25190, 34876, 37556, 43595, 46945, 50380, 87190, 93890, 95909, 103279, 174380, 187780, 191818, 206558, 357479, 383636, 413116, 479545, 516395, 714958, 959090, 1032790, 1429916, 1787395, 1918180, 1996651, 2065580, 3574790, 3932269, 3993302, 7149580, 7864538, 7986604, 9983255, 15729076, 19661345, 19966510, 21963161, 39322690, 39933020, 43926322, 78645380, 81862691, 87852644, 109815805, 163725382, 219631610, 327450764, 409313455, 439263220, 818626910, 900489601, 1637253820, 1800979202, 3601958404, 4502448005, 9004896010, 18009792020]

約数ペア:

[(1, 18009792020), (2, 9004896010), (4, 4502448005), (5, 3601958404), (10, 1800979202), (11, 1637253820), (20, 900489601), (22, 818626910), (41, 439263220), (44, 409313455), (55, 327450764), (82, 219631610), (110, 163725382), (164, 109815805), (205, 87852644), (220, 81862691), (229, 78645380), (410, 43926322), (451, 39933020), (458, 39322690), (820, 21963161), (902, 19966510), (916, 19661345), (1145, 15729076), (1804, 9983255), (2255, 7986604), (2290, 7864538), (2519, 7149580), (4510, 3993302), (4580, 3932269), (5038, 3574790), (8719, 2065580), (9020, 1996651), (9389, 1918180), (10076, 1787395), (12595, 1429916), (17438, 1032790), (18778, 959090), (25190, 714958), (34876, 516395), (37556, 479545), (43595, 413116), (46945, 383636), (50380, 357479), (87190, 206558), (93890, 191818), (95909, 187780), (103279, 174380)]