19535344

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1$

素因数の和:565

約数の個数: 40

約数和(自身を含む): 40176000

約数和(自身を除く): 20640656

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 179, 304, 358, 359, 716, 718, 1432, 1436, 2864, 2872, 3401, 5744, 6802, 6821, 13604, 13642, 27208, 27284, 54416, 54568, 64261, 109136, 128522, 257044, 514088, 1028176, 1220959, 2441918, 4883836, 9767672, 19535344]

約数ペア:

[(1, 19535344), (2, 9767672), (4, 4883836), (8, 2441918), (16, 1220959), (19, 1028176), (38, 514088), (76, 257044), (152, 128522), (179, 109136), (304, 64261), (358, 54568), (359, 54416), (716, 27284), (718, 27208), (1432, 13642), (1436, 13604), (2864, 6821), (2872, 6802), (3401, 5744)]