81764820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12277}}^1$

素因数の和:12329

約数の個数: 72

約数和(自身を含む): 254743944

約数和(自身を除く): 172979124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3330, 6660, 12277, 24554, 36831, 49108, 61385, 73662, 110493, 122770, 147324, 184155, 220986, 245540, 368310, 441972, 454249, 552465, 736620, 908498, 1104930, 1362747, 1816996, 2209860, 2271245, 2725494, 4088241, 4542490, 5450988, 6813735, 8176482, 9084980, 13627470, 16352964, 20441205, 27254940, 40882410, 81764820]

約数ペア:

[(1, 81764820), (2, 40882410), (3, 27254940), (4, 20441205), (5, 16352964), (6, 13627470), (9, 9084980), (10, 8176482), (12, 6813735), (15, 5450988), (18, 4542490), (20, 4088241), (30, 2725494), (36, 2271245), (37, 2209860), (45, 1816996), (60, 1362747), (74, 1104930), (90, 908498), (111, 736620), (148, 552465), (180, 454249), (185, 441972), (222, 368310), (333, 245540), (370, 220986), (444, 184155), (555, 147324), (666, 122770), (740, 110493), (1110, 73662), (1332, 61385), (1665, 49108), (2220, 36831), (3330, 24554), (6660, 12277)]