20001493792

素因数分解:

$2^5\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{21563}}^1$

素因数の和:21722

約数の個数: 96

約数和(自身を含む): 46559608704

約数和(自身を除く): 26558114912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 82, 101, 112, 164, 202, 224, 287, 328, 404, 574, 656, 707, 808, 1148, 1312, 1414, 1616, 2296, 2828, 3232, 4141, 4592, 5656, 8282, 9184, 11312, 16564, 21563, 22624, 28987, 33128, 43126, 57974, 66256, 86252, 115948, 132512, 150941, 172504, 231896, 301882, 345008, 463792, 603764, 690016, 884083, 927584, 1207528, 1768166, 2177863, 2415056, 3536332, 4355726, 4830112, 6188581, 7072664, 8711452, 12377162, 14145328, 15245041, 17422904, 24754324, 28290656, 30490082, 34845808, 49508648, 60980164, 69691616, 89292383, 99017296, 121960328, 178584766, 198034592, 243920656, 357169532, 487841312, 625046681, 714339064, 1250093362, 1428678128, 2500186724, 2857356256, 5000373448, 10000746896, 20001493792]

約数ペア:

[(1, 20001493792), (2, 10000746896), (4, 5000373448), (7, 2857356256), (8, 2500186724), (14, 1428678128), (16, 1250093362), (28, 714339064), (32, 625046681), (41, 487841312), (56, 357169532), (82, 243920656), (101, 198034592), (112, 178584766), (164, 121960328), (202, 99017296), (224, 89292383), (287, 69691616), (328, 60980164), (404, 49508648), (574, 34845808), (656, 30490082), (707, 28290656), (808, 24754324), (1148, 17422904), (1312, 15245041), (1414, 14145328), (1616, 12377162), (2296, 8711452), (2828, 7072664), (3232, 6188581), (4141, 4830112), (4592, 4355726), (5656, 3536332), (8282, 2415056), (9184, 2177863), (11312, 1768166), (16564, 1207528), (21563, 927584), (22624, 884083), (28987, 690016), (33128, 603764), (43126, 463792), (57974, 345008), (66256, 301882), (86252, 231896), (115948, 172504), (132512, 150941)]