20199131984

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{383}}^1\times {\mathrm{10531}}^1$

素因数の和:11235

約数の個数: 40

約数和(自身を含む): 39367099392

約数和(自身を除く): 19167967408

約数列:

[1, 2, 4, 8, 16, 313, 383, 626, 766, 1252, 1532, 2504, 3064, 5008, 6128, 10531, 21062, 42124, 84248, 119879, 168496, 239758, 479516, 959032, 1918064, 3296203, 4033373, 6592406, 8066746, 13184812, 16133492, 26369624, 32266984, 52739248, 64533968, 1262445749, 2524891498, 5049782996, 10099565992, 20199131984]

約数ペア:

[(1, 20199131984), (2, 10099565992), (4, 5049782996), (8, 2524891498), (16, 1262445749), (313, 64533968), (383, 52739248), (626, 32266984), (766, 26369624), (1252, 16133492), (1532, 13184812), (2504, 8066746), (3064, 6592406), (5008, 4033373), (6128, 3296203), (10531, 1918064), (21062, 959032), (42124, 479516), (84248, 239758), (119879, 168496)]