20452575

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1907}}^1$

素因数の和:1944

約数の個数: 48

約数和(自身を含む): 39747456

約数和(自身を除く): 19294881

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 55, 65, 75, 143, 165, 195, 275, 325, 429, 715, 825, 975, 1907, 2145, 3575, 5721, 9535, 10725, 20977, 24791, 28605, 47675, 62931, 74373, 104885, 123955, 143025, 272701, 314655, 371865, 524425, 619775, 818103, 1363505, 1573275, 1859325, 4090515, 6817525, 20452575]

約数ペア:

[(1, 20452575), (3, 6817525), (5, 4090515), (11, 1859325), (13, 1573275), (15, 1363505), (25, 818103), (33, 619775), (39, 524425), (55, 371865), (65, 314655), (75, 272701), (143, 143025), (165, 123955), (195, 104885), (275, 74373), (325, 62931), (429, 47675), (715, 28605), (825, 24791), (975, 20977), (1907, 10725), (2145, 9535), (3575, 5721)]