220954515

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:428

約数の個数: 64

約数和(自身を含む): 389836800

約数和(自身を除く): 168882285

約数列:

[1, 3, 5, 15, 19, 31, 57, 89, 93, 95, 155, 267, 281, 285, 445, 465, 589, 843, 1335, 1405, 1691, 1767, 2759, 2945, 4215, 5073, 5339, 8277, 8455, 8711, 8835, 13795, 16017, 25009, 25365, 26133, 26695, 41385, 43555, 52421, 75027, 80085, 125045, 130665, 157263, 165509, 262105, 375135, 475171, 496527, 775279, 786315, 827545, 1425513, 2325837, 2375855, 2482635, 3876395, 7127565, 11629185, 14730301, 44190903, 73651505, 220954515]

約数ペア:

[(1, 220954515), (3, 73651505), (5, 44190903), (15, 14730301), (19, 11629185), (31, 7127565), (57, 3876395), (89, 2482635), (93, 2375855), (95, 2325837), (155, 1425513), (267, 827545), (281, 786315), (285, 775279), (445, 496527), (465, 475171), (589, 375135), (843, 262105), (1335, 165509), (1405, 157263), (1691, 130665), (1767, 125045), (2759, 80085), (2945, 75027), (4215, 52421), (5073, 43555), (5339, 41385), (8277, 26695), (8455, 26133), (8711, 25365), (8835, 25009), (13795, 16017)]