809720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 1883520

約数和(自身を除く): 1073800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 653, 1240, 1306, 2612, 3265, 5224, 6530, 13060, 20243, 26120, 40486, 80972, 101215, 161944, 202430, 404860, 809720]

約数ペア:

[(1, 809720), (2, 404860), (4, 202430), (5, 161944), (8, 101215), (10, 80972), (20, 40486), (31, 26120), (40, 20243), (62, 13060), (124, 6530), (155, 5224), (248, 3265), (310, 2612), (620, 1306), (653, 1240)]