638605584

素因数分解:

$2^4\times 3^2\times {\mathrm{61}}^1\times {\mathrm{72701}}^1$

素因数の和:72776

約数の個数: 60

約数和(自身を含む): 1816532172

約数和(自身を除く): 1177926588

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 61, 72, 122, 144, 183, 244, 366, 488, 549, 732, 976, 1098, 1464, 2196, 2928, 4392, 8784, 72701, 145402, 218103, 290804, 436206, 581608, 654309, 872412, 1163216, 1308618, 1744824, 2617236, 3489648, 4434761, 5234472, 8869522, 10468944, 13304283, 17739044, 26608566, 35478088, 39912849, 53217132, 70956176, 79825698, 106434264, 159651396, 212868528, 319302792, 638605584]

約数ペア:

[(1, 638605584), (2, 319302792), (3, 212868528), (4, 159651396), (6, 106434264), (8, 79825698), (9, 70956176), (12, 53217132), (16, 39912849), (18, 35478088), (24, 26608566), (36, 17739044), (48, 13304283), (61, 10468944), (72, 8869522), (122, 5234472), (144, 4434761), (183, 3489648), (244, 2617236), (366, 1744824), (488, 1308618), (549, 1163216), (732, 872412), (976, 654309), (1098, 581608), (1464, 436206), (2196, 290804), (2928, 218103), (4392, 145402), (8784, 72701)]