81460680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2621}}^1$

素因数の和:2679

約数の個数: 128

約数和(自身を含む): 286951680

約数和(自身を除く): 205491000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 740, 777, 840, 888, 1036, 1110, 1295, 1480, 1554, 2072, 2220, 2590, 2621, 3108, 3885, 4440, 5180, 5242, 6216, 7770, 7863, 10360, 10484, 13105, 15540, 15726, 18347, 20968, 26210, 31080, 31452, 36694, 39315, 52420, 55041, 62904, 73388, 78630, 91735, 96977, 104840, 110082, 146776, 157260, 183470, 193954, 220164, 275205, 290931, 314520, 366940, 387908, 440328, 484885, 550410, 581862, 678839, 733880, 775816, 969770, 1100820, 1163724, 1357678, 1454655, 1939540, 2036517, 2201640, 2327448, 2715356, 2909310, 3394195, 3879080, 4073034, 5430712, 5818620, 6788390, 8146068, 10182585, 11637240, 13576780, 16292136, 20365170, 27153560, 40730340, 81460680]

約数ペア:

[(1, 81460680), (2, 40730340), (3, 27153560), (4, 20365170), (5, 16292136), (6, 13576780), (7, 11637240), (8, 10182585), (10, 8146068), (12, 6788390), (14, 5818620), (15, 5430712), (20, 4073034), (21, 3879080), (24, 3394195), (28, 2909310), (30, 2715356), (35, 2327448), (37, 2201640), (40, 2036517), (42, 1939540), (56, 1454655), (60, 1357678), (70, 1163724), (74, 1100820), (84, 969770), (105, 775816), (111, 733880), (120, 678839), (140, 581862), (148, 550410), (168, 484885), (185, 440328), (210, 387908), (222, 366940), (259, 314520), (280, 290931), (296, 275205), (370, 220164), (420, 193954), (444, 183470), (518, 157260), (555, 146776), (740, 110082), (777, 104840), (840, 96977), (888, 91735), (1036, 78630), (1110, 73388), (1295, 62904), (1480, 55041), (1554, 52420), (2072, 39315), (2220, 36694), (2590, 31452), (2621, 31080), (3108, 26210), (3885, 20968), (4440, 18347), (5180, 15726), (5242, 15540), (6216, 13105), (7770, 10484), (7863, 10360)]