19991032

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{541}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 39024000

約数和(自身を除く): 19032968

約数列:

[1, 2, 4, 8, 31, 62, 124, 149, 248, 298, 541, 596, 1082, 1192, 2164, 4328, 4619, 9238, 16771, 18476, 33542, 36952, 67084, 80609, 134168, 161218, 322436, 644872, 2498879, 4997758, 9995516, 19991032]

約数ペア:

[(1, 19991032), (2, 9995516), (4, 4997758), (8, 2498879), (31, 644872), (62, 322436), (124, 161218), (149, 134168), (248, 80609), (298, 67084), (541, 36952), (596, 33542), (1082, 18476), (1192, 16771), (2164, 9238), (4328, 4619)]