20508220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1861}}^1$

素因数の和:1918

約数の個数: 48

約数和(自身を含む): 46922400

約数和(自身を除く): 26414180

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 1861, 2204, 2755, 3722, 5510, 7444, 9305, 11020, 18610, 35359, 37220, 53969, 70718, 107938, 141436, 176795, 215876, 269845, 353590, 539690, 707180, 1025411, 1079380, 2050822, 4101644, 5127055, 10254110, 20508220]

約数ペア:

[(1, 20508220), (2, 10254110), (4, 5127055), (5, 4101644), (10, 2050822), (19, 1079380), (20, 1025411), (29, 707180), (38, 539690), (58, 353590), (76, 269845), (95, 215876), (116, 176795), (145, 141436), (190, 107938), (290, 70718), (380, 53969), (551, 37220), (580, 35359), (1102, 18610), (1861, 11020), (2204, 9305), (2755, 7444), (3722, 5510)]