66961980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:388

約数の個数: 144

約数和(自身を含む): 218574720

約数和(自身を除く): 151612740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 79, 85, 90, 102, 153, 158, 170, 180, 204, 237, 255, 277, 306, 316, 340, 395, 474, 510, 554, 612, 711, 765, 790, 831, 948, 1020, 1108, 1185, 1343, 1385, 1422, 1530, 1580, 1662, 2370, 2493, 2686, 2770, 2844, 3060, 3324, 3555, 4029, 4155, 4709, 4740, 4986, 5372, 5540, 6715, 7110, 8058, 8310, 9418, 9972, 12087, 12465, 13430, 14127, 14220, 16116, 16620, 18836, 20145, 21883, 23545, 24174, 24930, 26860, 28254, 40290, 42381, 43766, 47090, 48348, 49860, 56508, 60435, 65649, 70635, 80580, 84762, 87532, 94180, 109415, 120870, 131298, 141270, 169524, 196947, 211905, 218830, 241740, 262596, 282540, 328245, 372011, 393894, 423810, 437660, 656490, 744022, 787788, 847620, 984735, 1116033, 1312980, 1488044, 1860055, 1969470, 2232066, 3348099, 3720110, 3938940, 4464132, 5580165, 6696198, 7440220, 11160330, 13392396, 16740495, 22320660, 33480990, 66961980]

約数ペア:

[(1, 66961980), (2, 33480990), (3, 22320660), (4, 16740495), (5, 13392396), (6, 11160330), (9, 7440220), (10, 6696198), (12, 5580165), (15, 4464132), (17, 3938940), (18, 3720110), (20, 3348099), (30, 2232066), (34, 1969470), (36, 1860055), (45, 1488044), (51, 1312980), (60, 1116033), (68, 984735), (79, 847620), (85, 787788), (90, 744022), (102, 656490), (153, 437660), (158, 423810), (170, 393894), (180, 372011), (204, 328245), (237, 282540), (255, 262596), (277, 241740), (306, 218830), (316, 211905), (340, 196947), (395, 169524), (474, 141270), (510, 131298), (554, 120870), (612, 109415), (711, 94180), (765, 87532), (790, 84762), (831, 80580), (948, 70635), (1020, 65649), (1108, 60435), (1185, 56508), (1343, 49860), (1385, 48348), (1422, 47090), (1530, 43766), (1580, 42381), (1662, 40290), (2370, 28254), (2493, 26860), (2686, 24930), (2770, 24174), (2844, 23545), (3060, 21883), (3324, 20145), (3555, 18836), (4029, 16620), (4155, 16116), (4709, 14220), (4740, 14127), (4986, 13430), (5372, 12465), (5540, 12087), (6715, 9972), (7110, 9418), (8058, 8310)]