8091860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{359}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 20684160

約数和(自身を除く): 12592300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 359, 460, 490, 644, 718, 805, 980, 1127, 1436, 1610, 1795, 2254, 2513, 3220, 3590, 4508, 5026, 5635, 7180, 8257, 10052, 11270, 12565, 16514, 17591, 22540, 25130, 33028, 35182, 41285, 50260, 57799, 70364, 82570, 87955, 115598, 165140, 175910, 231196, 288995, 351820, 404593, 577990, 809186, 1155980, 1618372, 2022965, 4045930, 8091860]

約数ペア:

[(1, 8091860), (2, 4045930), (4, 2022965), (5, 1618372), (7, 1155980), (10, 809186), (14, 577990), (20, 404593), (23, 351820), (28, 288995), (35, 231196), (46, 175910), (49, 165140), (70, 115598), (92, 87955), (98, 82570), (115, 70364), (140, 57799), (161, 50260), (196, 41285), (230, 35182), (245, 33028), (322, 25130), (359, 22540), (460, 17591), (490, 16514), (644, 12565), (718, 11270), (805, 10052), (980, 8257), (1127, 7180), (1436, 5635), (1610, 5026), (1795, 4508), (2254, 3590), (2513, 3220)]