80980900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:854

約数の個数: 144

約数和(自身を含む): 236234880

約数和(自身を除く): 155253980

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 25, 26, 28, 35, 44, 50, 52, 55, 65, 70, 77, 91, 100, 110, 130, 140, 143, 154, 175, 182, 220, 260, 275, 286, 308, 325, 350, 364, 385, 455, 550, 572, 650, 700, 715, 770, 809, 910, 1001, 1100, 1300, 1430, 1540, 1618, 1820, 1925, 2002, 2275, 2860, 3236, 3575, 3850, 4004, 4045, 4550, 5005, 5663, 7150, 7700, 8090, 8899, 9100, 10010, 10517, 11326, 14300, 16180, 17798, 20020, 20225, 21034, 22652, 25025, 28315, 35596, 40450, 42068, 44495, 50050, 52585, 56630, 62293, 73619, 80900, 88990, 100100, 105170, 113260, 115687, 124586, 141575, 147238, 177980, 210340, 222475, 231374, 249172, 262925, 283150, 294476, 311465, 368095, 444950, 462748, 525850, 566300, 578435, 622930, 736190, 809809, 889900, 1051700, 1156870, 1245860, 1472380, 1557325, 1619618, 1840475, 2313740, 2892175, 3114650, 3239236, 3680950, 4049045, 5784350, 6229300, 7361900, 8098090, 11568700, 16196180, 20245225, 40490450, 80980900]

約数ペア:

[(1, 80980900), (2, 40490450), (4, 20245225), (5, 16196180), (7, 11568700), (10, 8098090), (11, 7361900), (13, 6229300), (14, 5784350), (20, 4049045), (22, 3680950), (25, 3239236), (26, 3114650), (28, 2892175), (35, 2313740), (44, 1840475), (50, 1619618), (52, 1557325), (55, 1472380), (65, 1245860), (70, 1156870), (77, 1051700), (91, 889900), (100, 809809), (110, 736190), (130, 622930), (140, 578435), (143, 566300), (154, 525850), (175, 462748), (182, 444950), (220, 368095), (260, 311465), (275, 294476), (286, 283150), (308, 262925), (325, 249172), (350, 231374), (364, 222475), (385, 210340), (455, 177980), (550, 147238), (572, 141575), (650, 124586), (700, 115687), (715, 113260), (770, 105170), (809, 100100), (910, 88990), (1001, 80900), (1100, 73619), (1300, 62293), (1430, 56630), (1540, 52585), (1618, 50050), (1820, 44495), (1925, 42068), (2002, 40450), (2275, 35596), (2860, 28315), (3236, 25025), (3575, 22652), (3850, 21034), (4004, 20225), (4045, 20020), (4550, 17798), (5005, 16180), (5663, 14300), (7150, 11326), (7700, 10517), (8090, 10010), (8899, 9100)]