79753700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1979}}^1$

素因数の和:2037

約数の個数: 72

約数和(自身を含む): 192487680

約数和(自身を除く): 112733980

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 1979, 2015, 3100, 3958, 4030, 7916, 8060, 9895, 10075, 19790, 20150, 25727, 39580, 40300, 49475, 51454, 61349, 98950, 102908, 122698, 128635, 197900, 245396, 257270, 306745, 514540, 613490, 643175, 797537, 1226980, 1286350, 1533725, 1595074, 2572700, 3067450, 3190148, 3987685, 6134900, 7975370, 15950740, 19938425, 39876850, 79753700]

約数ペア:

[(1, 79753700), (2, 39876850), (4, 19938425), (5, 15950740), (10, 7975370), (13, 6134900), (20, 3987685), (25, 3190148), (26, 3067450), (31, 2572700), (50, 1595074), (52, 1533725), (62, 1286350), (65, 1226980), (100, 797537), (124, 643175), (130, 613490), (155, 514540), (260, 306745), (310, 257270), (325, 245396), (403, 197900), (620, 128635), (650, 122698), (775, 102908), (806, 98950), (1300, 61349), (1550, 51454), (1612, 49475), (1979, 40300), (2015, 39580), (3100, 25727), (3958, 20150), (4030, 19790), (7916, 10075), (8060, 9895)]