18122220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1213}}^1$

素因数の和:1311

約数の個数: 72

約数和(自身を含む): 55678896

約数和(自身を除く): 37556676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1213, 1245, 1494, 1660, 2426, 2490, 2988, 3639, 3735, 4852, 4980, 6065, 7278, 7470, 10917, 12130, 14556, 14940, 18195, 21834, 24260, 36390, 43668, 54585, 72780, 100679, 109170, 201358, 218340, 302037, 402716, 503395, 604074, 906111, 1006790, 1208148, 1510185, 1812222, 2013580, 3020370, 3624444, 4530555, 6040740, 9061110, 18122220]

約数ペア:

[(1, 18122220), (2, 9061110), (3, 6040740), (4, 4530555), (5, 3624444), (6, 3020370), (9, 2013580), (10, 1812222), (12, 1510185), (15, 1208148), (18, 1006790), (20, 906111), (30, 604074), (36, 503395), (45, 402716), (60, 302037), (83, 218340), (90, 201358), (166, 109170), (180, 100679), (249, 72780), (332, 54585), (415, 43668), (498, 36390), (747, 24260), (830, 21834), (996, 18195), (1213, 14940), (1245, 14556), (1494, 12130), (1660, 10917), (2426, 7470), (2490, 7278), (2988, 6065), (3639, 4980), (3735, 4852)]