7211420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 16123968

約数和(自身を除く): 8912548

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 230, 244, 257, 305, 460, 514, 610, 1028, 1220, 1285, 1403, 2570, 2806, 5140, 5612, 5911, 7015, 11822, 14030, 15677, 23644, 28060, 29555, 31354, 59110, 62708, 78385, 118220, 156770, 313540, 360571, 721142, 1442284, 1802855, 3605710, 7211420]

約数ペア:

[(1, 7211420), (2, 3605710), (4, 1802855), (5, 1442284), (10, 721142), (20, 360571), (23, 313540), (46, 156770), (61, 118220), (92, 78385), (115, 62708), (122, 59110), (230, 31354), (244, 29555), (257, 28060), (305, 23644), (460, 15677), (514, 14030), (610, 11822), (1028, 7015), (1220, 5911), (1285, 5612), (1403, 5140), (2570, 2806)]