123043280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{90473}}^1$

素因数の和:90503

約数の個数: 40

約数和(自身を含む): 302906952

約数和(自身を除く): 179863672

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 90473, 180946, 361892, 452365, 723784, 904730, 1447568, 1538041, 1809460, 3076082, 3618920, 6152164, 7237840, 7690205, 12304328, 15380410, 24608656, 30760820, 61521640, 123043280]

約数ペア:

[(1, 123043280), (2, 61521640), (4, 30760820), (5, 24608656), (8, 15380410), (10, 12304328), (16, 7690205), (17, 7237840), (20, 6152164), (34, 3618920), (40, 3076082), (68, 1809460), (80, 1538041), (85, 1447568), (136, 904730), (170, 723784), (272, 452365), (340, 361892), (680, 180946), (1360, 90473)]