31184420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{25561}}^1$

素因数の和:25631

約数の個数: 24

約数和(自身を含む): 66563448

約数和(自身を除く): 35379028

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 25561, 51122, 102244, 127805, 255610, 511220, 1559221, 3118442, 6236884, 7796105, 15592210, 31184420]

約数ペア:

[(1, 31184420), (2, 15592210), (4, 7796105), (5, 6236884), (10, 3118442), (20, 1559221), (61, 511220), (122, 255610), (244, 127805), (305, 102244), (610, 51122), (1220, 25561)]