138181815

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{233}}^1$

素因数の和:461

約数の個数: 64

約数和(自身を含む): 258785280

約数和(自身を除く): 120603465

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 191, 207, 233, 345, 573, 621, 699, 955, 1035, 1165, 1719, 2097, 2865, 3105, 3495, 4393, 5157, 5359, 6291, 8595, 10485, 13179, 16077, 21965, 25785, 26795, 31455, 39537, 44503, 48231, 65895, 80385, 118611, 133509, 144693, 197685, 222515, 241155, 400527, 593055, 667545, 723465, 1023569, 1201581, 2002635, 3070707, 5117845, 6007905, 9212121, 15353535, 27636363, 46060605, 138181815]

約数ペア:

[(1, 138181815), (3, 46060605), (5, 27636363), (9, 15353535), (15, 9212121), (23, 6007905), (27, 5117845), (45, 3070707), (69, 2002635), (115, 1201581), (135, 1023569), (191, 723465), (207, 667545), (233, 593055), (345, 400527), (573, 241155), (621, 222515), (699, 197685), (955, 144693), (1035, 133509), (1165, 118611), (1719, 80385), (2097, 65895), (2865, 48231), (3105, 44503), (3495, 39537), (4393, 31455), (5157, 26795), (5359, 25785), (6291, 21965), (8595, 16077), (10485, 13179)]