9802280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 23284800

約数和(自身を除く): 13482520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 139, 164, 172, 205, 215, 278, 328, 344, 410, 430, 556, 695, 820, 860, 1112, 1390, 1640, 1720, 1763, 2780, 3526, 5560, 5699, 5977, 7052, 8815, 11398, 11954, 14104, 17630, 22796, 23908, 28495, 29885, 35260, 45592, 47816, 56990, 59770, 70520, 113980, 119540, 227960, 239080, 245057, 490114, 980228, 1225285, 1960456, 2450570, 4901140, 9802280]

約数ペア:

[(1, 9802280), (2, 4901140), (4, 2450570), (5, 1960456), (8, 1225285), (10, 980228), (20, 490114), (40, 245057), (41, 239080), (43, 227960), (82, 119540), (86, 113980), (139, 70520), (164, 59770), (172, 56990), (205, 47816), (215, 45592), (278, 35260), (328, 29885), (344, 28495), (410, 23908), (430, 22796), (556, 17630), (695, 14104), (820, 11954), (860, 11398), (1112, 8815), (1390, 7052), (1640, 5977), (1720, 5699), (1763, 5560), (2780, 3526)]