20850290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{653}}^1$

素因数の和:794

約数の個数: 32

約数和(自身を含む): 39177216

約数和(自身を除く): 18326926

約数列:

[1, 2, 5, 10, 31, 62, 103, 155, 206, 310, 515, 653, 1030, 1306, 3193, 3265, 6386, 6530, 15965, 20243, 31930, 40486, 67259, 101215, 134518, 202430, 336295, 672590, 2085029, 4170058, 10425145, 20850290]

約数ペア:

[(1, 20850290), (2, 10425145), (5, 4170058), (10, 2085029), (31, 672590), (62, 336295), (103, 202430), (155, 134518), (206, 101215), (310, 67259), (515, 40486), (653, 31930), (1030, 20243), (1306, 15965), (3193, 6530), (3265, 6386)]