20316472

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 45360000

約数和(自身を除く): 25043528

約数列:

[1, 2, 4, 8, 11, 19, 22, 29, 38, 44, 58, 76, 88, 116, 152, 209, 232, 319, 418, 419, 551, 638, 836, 838, 1102, 1276, 1672, 1676, 2204, 2552, 3352, 4408, 4609, 6061, 7961, 9218, 12122, 12151, 15922, 18436, 24244, 24302, 31844, 36872, 48488, 48604, 63688, 87571, 97208, 133661, 175142, 230869, 267322, 350284, 461738, 534644, 700568, 923476, 1069288, 1846952, 2539559, 5079118, 10158236, 20316472]

約数ペア:

[(1, 20316472), (2, 10158236), (4, 5079118), (8, 2539559), (11, 1846952), (19, 1069288), (22, 923476), (29, 700568), (38, 534644), (44, 461738), (58, 350284), (76, 267322), (88, 230869), (116, 175142), (152, 133661), (209, 97208), (232, 87571), (319, 63688), (418, 48604), (419, 48488), (551, 36872), (638, 31844), (836, 24302), (838, 24244), (1102, 18436), (1276, 15922), (1672, 12151), (1676, 12122), (2204, 9218), (2552, 7961), (3352, 6061), (4408, 4609)]