2154640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1171}}^1$

素因数の和:1207

約数の個数: 40

約数和(自身を含む): 5231808

約数和(自身を除く): 3077168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1171, 1840, 2342, 4684, 5855, 9368, 11710, 18736, 23420, 26933, 46840, 53866, 93680, 107732, 134665, 215464, 269330, 430928, 538660, 1077320, 2154640]

約数ペア:

[(1, 2154640), (2, 1077320), (4, 538660), (5, 430928), (8, 269330), (10, 215464), (16, 134665), (20, 107732), (23, 93680), (40, 53866), (46, 46840), (80, 26933), (92, 23420), (115, 18736), (184, 11710), (230, 9368), (368, 5855), (460, 4684), (920, 2342), (1171, 1840)]