20215568925

素因数分解:

$3^4\times 5^2\times {\mathrm{191}}^1\times {\mathrm{52267}}^1$

素因数の和:52480

約数の個数: 60

約数和(自身を含む): 37642995456

約数和(自身を除く): 17427426531

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 191, 225, 405, 573, 675, 955, 1719, 2025, 2865, 4775, 5157, 8595, 14325, 15471, 25785, 42975, 52267, 77355, 128925, 156801, 261335, 386775, 470403, 784005, 1306675, 1411209, 2352015, 3920025, 4233627, 7056045, 9982997, 11760075, 21168135, 29948991, 35280225, 49914985, 89846973, 105840675, 149744955, 249574925, 269540919, 449234865, 748724775, 808622757, 1347704595, 2246174325, 4043113785, 6738522975, 20215568925]

約数ペア:

[(1, 20215568925), (3, 6738522975), (5, 4043113785), (9, 2246174325), (15, 1347704595), (25, 808622757), (27, 748724775), (45, 449234865), (75, 269540919), (81, 249574925), (135, 149744955), (191, 105840675), (225, 89846973), (405, 49914985), (573, 35280225), (675, 29948991), (955, 21168135), (1719, 11760075), (2025, 9982997), (2865, 7056045), (4775, 4233627), (5157, 3920025), (8595, 2352015), (14325, 1411209), (15471, 1306675), (25785, 784005), (42975, 470403), (52267, 386775), (77355, 261335), (128925, 156801)]