77851540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{743}}^1$

素因数の和:809

約数の個数: 72

約数和(自身を含む): 182988288

約数和(自身を除く): 105136748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 743, 806, 845, 1486, 1612, 1690, 2015, 2972, 3380, 3715, 4030, 5239, 7430, 8060, 9659, 10478, 14860, 19318, 20956, 23033, 26195, 38636, 46066, 48295, 52390, 92132, 96590, 104780, 115165, 125567, 193180, 230330, 251134, 299429, 460660, 502268, 598858, 627835, 1197716, 1255670, 1497145, 2511340, 2994290, 3892577, 5988580, 7785154, 15570308, 19462885, 38925770, 77851540]

約数ペア:

[(1, 77851540), (2, 38925770), (4, 19462885), (5, 15570308), (10, 7785154), (13, 5988580), (20, 3892577), (26, 2994290), (31, 2511340), (52, 1497145), (62, 1255670), (65, 1197716), (124, 627835), (130, 598858), (155, 502268), (169, 460660), (260, 299429), (310, 251134), (338, 230330), (403, 193180), (620, 125567), (676, 115165), (743, 104780), (806, 96590), (845, 92132), (1486, 52390), (1612, 48295), (1690, 46066), (2015, 38636), (2972, 26195), (3380, 23033), (3715, 20956), (4030, 19318), (5239, 14860), (7430, 10478), (8060, 9659)]