81531720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6121}}^1$

素因数の和:6175

約数の個数: 96

約数和(自身を含む): 272184120

約数和(自身を除く): 190652400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 72, 74, 90, 111, 120, 148, 180, 185, 222, 296, 333, 360, 370, 444, 555, 666, 740, 888, 1110, 1332, 1480, 1665, 2220, 2664, 3330, 4440, 6121, 6660, 12242, 13320, 18363, 24484, 30605, 36726, 48968, 55089, 61210, 73452, 91815, 110178, 122420, 146904, 183630, 220356, 226477, 244840, 275445, 367260, 440712, 452954, 550890, 679431, 734520, 905908, 1101780, 1132385, 1358862, 1811816, 2038293, 2203560, 2264770, 2717724, 3397155, 4076586, 4529540, 5435448, 6794310, 8153172, 9059080, 10191465, 13588620, 16306344, 20382930, 27177240, 40765860, 81531720]

約数ペア:

[(1, 81531720), (2, 40765860), (3, 27177240), (4, 20382930), (5, 16306344), (6, 13588620), (8, 10191465), (9, 9059080), (10, 8153172), (12, 6794310), (15, 5435448), (18, 4529540), (20, 4076586), (24, 3397155), (30, 2717724), (36, 2264770), (37, 2203560), (40, 2038293), (45, 1811816), (60, 1358862), (72, 1132385), (74, 1101780), (90, 905908), (111, 734520), (120, 679431), (148, 550890), (180, 452954), (185, 440712), (222, 367260), (296, 275445), (333, 244840), (360, 226477), (370, 220356), (444, 183630), (555, 146904), (666, 122420), (740, 110178), (888, 91815), (1110, 73452), (1332, 61210), (1480, 55089), (1665, 48968), (2220, 36726), (2664, 30605), (3330, 24484), (4440, 18363), (6121, 13320), (6660, 12242)]