71872245

素因数分解:

$3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3391}}^1$

素因数の和:3562

約数の個数: 32

約数和(自身を含む): 128624640

約数和(自身を除く): 56752395

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 1413, 2355, 3391, 4239, 7065, 10173, 16955, 21195, 30519, 50865, 91557, 152595, 457785, 532387, 1597161, 2661935, 4791483, 7985805, 14374449, 23957415, 71872245]

約数ペア:

[(1, 71872245), (3, 23957415), (5, 14374449), (9, 7985805), (15, 4791483), (27, 2661935), (45, 1597161), (135, 532387), (157, 457785), (471, 152595), (785, 91557), (1413, 50865), (2355, 30519), (3391, 21195), (4239, 16955), (7065, 10173)]