81248535

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 152616960

約数和(自身を除く): 71368425

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 137, 191, 207, 345, 411, 573, 621, 685, 955, 1035, 1233, 1719, 2055, 2865, 3105, 3151, 3699, 4393, 5157, 6165, 8595, 9453, 13179, 15755, 18495, 21965, 25785, 26167, 28359, 39537, 47265, 65895, 78501, 85077, 118611, 130835, 141795, 197685, 235503, 392505, 425385, 593055, 601841, 706509, 1177515, 1805523, 3009205, 3532545, 5416569, 9027615, 16249707, 27082845, 81248535]

約数ペア:

[(1, 81248535), (3, 27082845), (5, 16249707), (9, 9027615), (15, 5416569), (23, 3532545), (27, 3009205), (45, 1805523), (69, 1177515), (115, 706509), (135, 601841), (137, 593055), (191, 425385), (207, 392505), (345, 235503), (411, 197685), (573, 141795), (621, 130835), (685, 118611), (955, 85077), (1035, 78501), (1233, 65895), (1719, 47265), (2055, 39537), (2865, 28359), (3105, 26167), (3151, 25785), (3699, 21965), (4393, 18495), (5157, 15755), (6165, 13179), (8595, 9453)]