208077415

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1997}}^1$

素因数の和:2251

約数の個数: 32

約数和(自身を含む): 308810880

約数和(自身を除く): 100733465

約数列:

[1, 5, 7, 13, 35, 65, 91, 229, 455, 1145, 1603, 1997, 2977, 8015, 9985, 13979, 14885, 20839, 25961, 69895, 104195, 129805, 181727, 457313, 908635, 2286565, 3201191, 5945069, 16005955, 29725345, 41615483, 208077415]

約数ペア:

[(1, 208077415), (5, 41615483), (7, 29725345), (13, 16005955), (35, 5945069), (65, 3201191), (91, 2286565), (229, 908635), (455, 457313), (1145, 181727), (1603, 129805), (1997, 104195), (2977, 69895), (8015, 25961), (9985, 20839), (13979, 14885)]