17943380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9859}}^1$

素因数の和:9888

約数の個数: 48

約数和(自身を含む): 46381440

約数和(自身を除く): 28438060

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 9859, 19718, 39436, 49295, 69013, 98590, 128167, 138026, 197180, 256334, 276052, 345065, 512668, 640835, 690130, 897169, 1281670, 1380260, 1794338, 2563340, 3588676, 4485845, 8971690, 17943380]

約数ペア:

[(1, 17943380), (2, 8971690), (4, 4485845), (5, 3588676), (7, 2563340), (10, 1794338), (13, 1380260), (14, 1281670), (20, 897169), (26, 690130), (28, 640835), (35, 512668), (52, 345065), (65, 276052), (70, 256334), (91, 197180), (130, 138026), (140, 128167), (182, 98590), (260, 69013), (364, 49295), (455, 39436), (910, 19718), (1820, 9859)]