19742940

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1741}}^1$

素因数の和:1769

約数の個数: 120

約数和(自身を含む): 70822752

約数和(自身を除く): 51079812

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1741, 1890, 2268, 2835, 3482, 3780, 5223, 5670, 6964, 8705, 10446, 11340, 12187, 15669, 17410, 20892, 24374, 26115, 31338, 34820, 36561, 47007, 48748, 52230, 60935, 62676, 73122, 78345, 94014, 104460, 109683, 121870, 141021, 146244, 156690, 182805, 188028, 219366, 235035, 243740, 282042, 313380, 329049, 365610, 438732, 470070, 548415, 564084, 658098, 705105, 731220, 940140, 987147, 1096830, 1316196, 1410210, 1645245, 1974294, 2193660, 2820420, 3290490, 3948588, 4935735, 6580980, 9871470, 19742940]

約数ペア:

[(1, 19742940), (2, 9871470), (3, 6580980), (4, 4935735), (5, 3948588), (6, 3290490), (7, 2820420), (9, 2193660), (10, 1974294), (12, 1645245), (14, 1410210), (15, 1316196), (18, 1096830), (20, 987147), (21, 940140), (27, 731220), (28, 705105), (30, 658098), (35, 564084), (36, 548415), (42, 470070), (45, 438732), (54, 365610), (60, 329049), (63, 313380), (70, 282042), (81, 243740), (84, 235035), (90, 219366), (105, 188028), (108, 182805), (126, 156690), (135, 146244), (140, 141021), (162, 121870), (180, 109683), (189, 104460), (210, 94014), (252, 78345), (270, 73122), (315, 62676), (324, 60935), (378, 52230), (405, 48748), (420, 47007), (540, 36561), (567, 34820), (630, 31338), (756, 26115), (810, 24374), (945, 20892), (1134, 17410), (1260, 15669), (1620, 12187), (1741, 11340), (1890, 10446), (2268, 8705), (2835, 6964), (3482, 5670), (3780, 5223)]