212123545

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1151}}^1$

素因数の和:1257

約数の個数: 32

約数和(自身を含む): 278691840

約数和(自身を除く): 66568295

約数列:

[1, 5, 29, 31, 41, 145, 155, 205, 899, 1151, 1189, 1271, 4495, 5755, 5945, 6355, 33379, 35681, 36859, 47191, 166895, 178405, 184295, 235955, 1034749, 1368539, 1462921, 5173745, 6842695, 7314605, 42424709, 212123545]

約数ペア:

[(1, 212123545), (5, 42424709), (29, 7314605), (31, 6842695), (41, 5173745), (145, 1462921), (155, 1368539), (205, 1034749), (899, 235955), (1151, 184295), (1189, 178405), (1271, 166895), (4495, 47191), (5755, 36859), (5945, 35681), (6355, 33379)]