19485050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{967}}^1$

素因数の和:1023

約数の個数: 48

約数和(自身を含む): 40330752

約数和(自身を除く): 20845702

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 967, 1550, 1934, 2015, 4030, 4835, 9670, 10075, 12571, 20150, 24175, 25142, 29977, 48350, 59954, 62855, 125710, 149885, 299770, 314275, 389701, 628550, 749425, 779402, 1498850, 1948505, 3897010, 9742525, 19485050]

約数ペア:

[(1, 19485050), (2, 9742525), (5, 3897010), (10, 1948505), (13, 1498850), (25, 779402), (26, 749425), (31, 628550), (50, 389701), (62, 314275), (65, 299770), (130, 149885), (155, 125710), (310, 62855), (325, 59954), (403, 48350), (650, 29977), (775, 25142), (806, 24175), (967, 20150), (1550, 12571), (1934, 10075), (2015, 9670), (4030, 4835)]