638953896

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1553}}^1$

素因数の和:1679

約数の個数: 128

約数和(自身を含む): 1909555200

約数和(自身を除く): 1270601304

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 62, 79, 84, 93, 124, 158, 168, 186, 217, 237, 248, 316, 372, 434, 474, 553, 632, 651, 744, 868, 948, 1106, 1302, 1553, 1659, 1736, 1896, 2212, 2449, 2604, 3106, 3318, 4424, 4659, 4898, 5208, 6212, 6636, 7347, 9318, 9796, 10871, 12424, 13272, 14694, 17143, 18636, 19592, 21742, 29388, 32613, 34286, 37272, 43484, 48143, 51429, 58776, 65226, 68572, 86968, 96286, 102858, 122687, 130452, 137144, 144429, 192572, 205716, 245374, 260904, 288858, 337001, 368061, 385144, 411432, 490748, 577716, 674002, 736122, 858809, 981496, 1011003, 1155432, 1348004, 1472244, 1717618, 2022006, 2576427, 2696008, 2944488, 3435236, 3803297, 4044012, 5152854, 6870472, 7606594, 8088024, 10305708, 11409891, 15213188, 20611416, 22819782, 26623079, 30426376, 45639564, 53246158, 79869237, 91279128, 106492316, 159738474, 212984632, 319476948, 638953896]

約数ペア:

[(1, 638953896), (2, 319476948), (3, 212984632), (4, 159738474), (6, 106492316), (7, 91279128), (8, 79869237), (12, 53246158), (14, 45639564), (21, 30426376), (24, 26623079), (28, 22819782), (31, 20611416), (42, 15213188), (56, 11409891), (62, 10305708), (79, 8088024), (84, 7606594), (93, 6870472), (124, 5152854), (158, 4044012), (168, 3803297), (186, 3435236), (217, 2944488), (237, 2696008), (248, 2576427), (316, 2022006), (372, 1717618), (434, 1472244), (474, 1348004), (553, 1155432), (632, 1011003), (651, 981496), (744, 858809), (868, 736122), (948, 674002), (1106, 577716), (1302, 490748), (1553, 411432), (1659, 385144), (1736, 368061), (1896, 337001), (2212, 288858), (2449, 260904), (2604, 245374), (3106, 205716), (3318, 192572), (4424, 144429), (4659, 137144), (4898, 130452), (5208, 122687), (6212, 102858), (6636, 96286), (7347, 86968), (9318, 68572), (9796, 65226), (10871, 58776), (12424, 51429), (13272, 48143), (14694, 43484), (17143, 37272), (18636, 34286), (19592, 32613), (21742, 29388)]