8385860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:265

約数の個数: 72

約数和(自身を含む): 21067200

約数和(自身を除く): 12681340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 199, 215, 245, 301, 398, 430, 490, 602, 796, 860, 980, 995, 1204, 1393, 1505, 1990, 2107, 2786, 3010, 3980, 4214, 5572, 6020, 6965, 8428, 8557, 9751, 10535, 13930, 17114, 19502, 21070, 27860, 34228, 39004, 42140, 42785, 48755, 59899, 85570, 97510, 119798, 171140, 195020, 239596, 299495, 419293, 598990, 838586, 1197980, 1677172, 2096465, 4192930, 8385860]

約数ペア:

[(1, 8385860), (2, 4192930), (4, 2096465), (5, 1677172), (7, 1197980), (10, 838586), (14, 598990), (20, 419293), (28, 299495), (35, 239596), (43, 195020), (49, 171140), (70, 119798), (86, 97510), (98, 85570), (140, 59899), (172, 48755), (196, 42785), (199, 42140), (215, 39004), (245, 34228), (301, 27860), (398, 21070), (430, 19502), (490, 17114), (602, 13930), (796, 10535), (860, 9751), (980, 8557), (995, 8428), (1204, 6965), (1393, 6020), (1505, 5572), (1990, 4214), (2107, 3980), (2786, 3010)]