30713440

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1381}}^1$

素因数の和:1535

約数の個数: 48

約数和(自身を含む): 73135440

約数和(自身を除く): 42422000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1381, 1390, 2224, 2762, 2780, 4448, 5524, 5560, 6905, 11048, 11120, 13810, 22096, 22240, 27620, 44192, 55240, 110480, 191959, 220960, 383918, 767836, 959795, 1535672, 1919590, 3071344, 3839180, 6142688, 7678360, 15356720, 30713440]

約数ペア:

[(1, 30713440), (2, 15356720), (4, 7678360), (5, 6142688), (8, 3839180), (10, 3071344), (16, 1919590), (20, 1535672), (32, 959795), (40, 767836), (80, 383918), (139, 220960), (160, 191959), (278, 110480), (556, 55240), (695, 44192), (1112, 27620), (1381, 22240), (1390, 22096), (2224, 13810), (2762, 11120), (2780, 11048), (4448, 6905), (5524, 5560)]