20177796784

素因数分解:

$2^4\times {\mathrm{29}}^2\times {\mathrm{43}}^2\times {\mathrm{811}}^1$

素因数の和:963

約数の個数: 90

約数和(自身を含む): 41503669116

約数和(自身を除く): 21325872332

約数列:

[1, 2, 4, 8, 16, 29, 43, 58, 86, 116, 172, 232, 344, 464, 688, 811, 841, 1247, 1622, 1682, 1849, 2494, 3244, 3364, 3698, 4988, 6488, 6728, 7396, 9976, 12976, 13456, 14792, 19952, 23519, 29584, 34873, 36163, 47038, 53621, 69746, 72326, 94076, 107242, 139492, 144652, 188152, 214484, 278984, 289304, 376304, 428968, 557968, 578608, 682051, 857936, 1011317, 1364102, 1499539, 1555009, 2022634, 2728204, 2999078, 3110018, 4045268, 5456408, 5998156, 6220036, 8090536, 10912816, 11996312, 12440072, 16181072, 23992624, 24880144, 29328193, 43486631, 58656386, 86973262, 117312772, 173946524, 234625544, 347893048, 469251088, 695786096, 1261112299, 2522224598, 5044449196, 10088898392, 20177796784]

約数ペア:

[(1, 20177796784), (2, 10088898392), (4, 5044449196), (8, 2522224598), (16, 1261112299), (29, 695786096), (43, 469251088), (58, 347893048), (86, 234625544), (116, 173946524), (172, 117312772), (232, 86973262), (344, 58656386), (464, 43486631), (688, 29328193), (811, 24880144), (841, 23992624), (1247, 16181072), (1622, 12440072), (1682, 11996312), (1849, 10912816), (2494, 8090536), (3244, 6220036), (3364, 5998156), (3698, 5456408), (4988, 4045268), (6488, 3110018), (6728, 2999078), (7396, 2728204), (9976, 2022634), (12976, 1555009), (13456, 1499539), (14792, 1364102), (19952, 1011317), (23519, 857936), (29584, 682051), (34873, 578608), (36163, 557968), (47038, 428968), (53621, 376304), (69746, 289304), (72326, 278984), (94076, 214484), (107242, 188152), (139492, 144652)]