20315156985

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{45541}}^1$

素因数の和:46006

約数の個数: 48

約数和(自身を含む): 36829997568

約数和(自身を除く): 16514840583

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 431, 1035, 1293, 2155, 3879, 6465, 9913, 19395, 29739, 45541, 49565, 89217, 136623, 148695, 227705, 409869, 446085, 683115, 1047443, 2049345, 3142329, 5237215, 9426987, 15711645, 19628171, 47134935, 58884513, 98140855, 176653539, 294422565, 451447933, 883267695, 1354343799, 2257239665, 4063031397, 6771718995, 20315156985]

約数ペア:

[(1, 20315156985), (3, 6771718995), (5, 4063031397), (9, 2257239665), (15, 1354343799), (23, 883267695), (45, 451447933), (69, 294422565), (115, 176653539), (207, 98140855), (345, 58884513), (431, 47134935), (1035, 19628171), (1293, 15711645), (2155, 9426987), (3879, 5237215), (6465, 3142329), (9913, 2049345), (19395, 1047443), (29739, 683115), (45541, 446085), (49565, 409869), (89217, 227705), (136623, 148695)]