20773456

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 47729088

約数和(自身を除く): 26955632

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 53, 68, 88, 106, 131, 136, 176, 187, 212, 262, 272, 374, 424, 524, 583, 748, 848, 901, 1048, 1166, 1441, 1496, 1802, 2096, 2227, 2332, 2882, 2992, 3604, 4454, 4664, 5764, 6943, 7208, 8908, 9328, 9911, 11528, 13886, 14416, 17816, 19822, 23056, 24497, 27772, 35632, 39644, 48994, 55544, 76373, 79288, 97988, 111088, 118031, 152746, 158576, 195976, 236062, 305492, 391952, 472124, 610984, 944248, 1221968, 1298341, 1888496, 2596682, 5193364, 10386728, 20773456]

約数ペア:

[(1, 20773456), (2, 10386728), (4, 5193364), (8, 2596682), (11, 1888496), (16, 1298341), (17, 1221968), (22, 944248), (34, 610984), (44, 472124), (53, 391952), (68, 305492), (88, 236062), (106, 195976), (131, 158576), (136, 152746), (176, 118031), (187, 111088), (212, 97988), (262, 79288), (272, 76373), (374, 55544), (424, 48994), (524, 39644), (583, 35632), (748, 27772), (848, 24497), (901, 23056), (1048, 19822), (1166, 17816), (1441, 14416), (1496, 13886), (1802, 11528), (2096, 9911), (2227, 9328), (2332, 8908), (2882, 7208), (2992, 6943), (3604, 5764), (4454, 4664)]