220876640

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15511}}^1$

素因数の和:15615

約数の個数: 48

約数和(自身を含む): 527718240

約数和(自身を除く): 306841600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 7120, 14240, 15511, 31022, 62044, 77555, 124088, 155110, 248176, 310220, 496352, 620440, 1240880, 1380479, 2481760, 2760958, 5521916, 6902395, 11043832, 13804790, 22087664, 27609580, 44175328, 55219160, 110438320, 220876640]

約数ペア:

[(1, 220876640), (2, 110438320), (4, 55219160), (5, 44175328), (8, 27609580), (10, 22087664), (16, 13804790), (20, 11043832), (32, 6902395), (40, 5521916), (80, 2760958), (89, 2481760), (160, 1380479), (178, 1240880), (356, 620440), (445, 496352), (712, 310220), (890, 248176), (1424, 155110), (1780, 124088), (2848, 77555), (3560, 62044), (7120, 31022), (14240, 15511)]