18163460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{947}}^1$

素因数の和:1100

約数の個数: 48

約数和(自身を含む): 43956864

約数和(自身を除く): 25793404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 947, 959, 1370, 1894, 1918, 2740, 3788, 3836, 4735, 4795, 6629, 9470, 9590, 13258, 18940, 19180, 26516, 33145, 66290, 129739, 132580, 259478, 518956, 648695, 908173, 1297390, 1816346, 2594780, 3632692, 4540865, 9081730, 18163460]

約数ペア:

[(1, 18163460), (2, 9081730), (4, 4540865), (5, 3632692), (7, 2594780), (10, 1816346), (14, 1297390), (20, 908173), (28, 648695), (35, 518956), (70, 259478), (137, 132580), (140, 129739), (274, 66290), (548, 33145), (685, 26516), (947, 19180), (959, 18940), (1370, 13258), (1894, 9590), (1918, 9470), (2740, 6629), (3788, 4795), (3836, 4735)]