19901856

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:494

約数の個数: 96

約数和(自身を含む): 57915648

約数和(自身を除く): 38013792

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 37, 39, 48, 52, 74, 78, 96, 104, 111, 148, 156, 208, 222, 296, 312, 416, 431, 444, 481, 592, 624, 862, 888, 962, 1184, 1248, 1293, 1443, 1724, 1776, 1924, 2586, 2886, 3448, 3552, 3848, 5172, 5603, 5772, 6896, 7696, 10344, 11206, 11544, 13792, 15392, 15947, 16809, 20688, 22412, 23088, 31894, 33618, 41376, 44824, 46176, 47841, 63788, 67236, 89648, 95682, 127576, 134472, 179296, 191364, 207311, 255152, 268944, 382728, 414622, 510304, 537888, 621933, 765456, 829244, 1243866, 1530912, 1658488, 2487732, 3316976, 4975464, 6633952, 9950928, 19901856]

約数ペア:

[(1, 19901856), (2, 9950928), (3, 6633952), (4, 4975464), (6, 3316976), (8, 2487732), (12, 1658488), (13, 1530912), (16, 1243866), (24, 829244), (26, 765456), (32, 621933), (37, 537888), (39, 510304), (48, 414622), (52, 382728), (74, 268944), (78, 255152), (96, 207311), (104, 191364), (111, 179296), (148, 134472), (156, 127576), (208, 95682), (222, 89648), (296, 67236), (312, 63788), (416, 47841), (431, 46176), (444, 44824), (481, 41376), (592, 33618), (624, 31894), (862, 23088), (888, 22412), (962, 20688), (1184, 16809), (1248, 15947), (1293, 15392), (1443, 13792), (1724, 11544), (1776, 11206), (1924, 10344), (2586, 7696), (2886, 6896), (3448, 5772), (3552, 5603), (3848, 5172)]