18475820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{613}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 42704928

約数和(自身を除く): 24229108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 274, 548, 613, 685, 1226, 1370, 1507, 2452, 2740, 3014, 3065, 6028, 6130, 6743, 7535, 12260, 13486, 15070, 26972, 30140, 33715, 67430, 83981, 134860, 167962, 335924, 419905, 839810, 923791, 1679620, 1847582, 3695164, 4618955, 9237910, 18475820]

約数ペア:

[(1, 18475820), (2, 9237910), (4, 4618955), (5, 3695164), (10, 1847582), (11, 1679620), (20, 923791), (22, 839810), (44, 419905), (55, 335924), (110, 167962), (137, 134860), (220, 83981), (274, 67430), (548, 33715), (613, 30140), (685, 26972), (1226, 15070), (1370, 13486), (1507, 12260), (2452, 7535), (2740, 6743), (3014, 6130), (3065, 6028)]