19978896

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{613}}^1$

素因数の和:728

約数の個数: 80

約数和(自身を含む): 59690624

約数和(自身を除く): 39711728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 97, 112, 168, 194, 291, 336, 388, 582, 613, 679, 776, 1164, 1226, 1358, 1552, 1839, 2037, 2328, 2452, 2716, 3678, 4074, 4291, 4656, 4904, 5432, 7356, 8148, 8582, 9808, 10864, 12873, 14712, 16296, 17164, 25746, 29424, 32592, 34328, 51492, 59461, 68656, 102984, 118922, 178383, 205968, 237844, 356766, 416227, 475688, 713532, 832454, 951376, 1248681, 1427064, 1664908, 2497362, 2854128, 3329816, 4994724, 6659632, 9989448, 19978896]

約数ペア:

[(1, 19978896), (2, 9989448), (3, 6659632), (4, 4994724), (6, 3329816), (7, 2854128), (8, 2497362), (12, 1664908), (14, 1427064), (16, 1248681), (21, 951376), (24, 832454), (28, 713532), (42, 475688), (48, 416227), (56, 356766), (84, 237844), (97, 205968), (112, 178383), (168, 118922), (194, 102984), (291, 68656), (336, 59461), (388, 51492), (582, 34328), (613, 32592), (679, 29424), (776, 25746), (1164, 17164), (1226, 16296), (1358, 14712), (1552, 12873), (1839, 10864), (2037, 9808), (2328, 8582), (2452, 8148), (2716, 7356), (3678, 5432), (4074, 4904), (4291, 4656)]