85820020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:881

約数の個数: 96

約数和(自身を含む): 217719936

約数和(自身を除く): 131899916

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 37, 44, 52, 55, 65, 74, 110, 130, 143, 148, 185, 220, 260, 286, 370, 407, 481, 572, 715, 740, 811, 814, 962, 1430, 1622, 1628, 1924, 2035, 2405, 2860, 3244, 4055, 4070, 4810, 5291, 8110, 8140, 8921, 9620, 10543, 10582, 16220, 17842, 21086, 21164, 26455, 30007, 35684, 42172, 44605, 52715, 52910, 60014, 89210, 105430, 105820, 115973, 120028, 150035, 178420, 210860, 231946, 300070, 330077, 390091, 463892, 579865, 600140, 660154, 780182, 1159730, 1320308, 1560364, 1650385, 1950455, 2319460, 3300770, 3900910, 4291001, 6601540, 7801820, 8582002, 17164004, 21455005, 42910010, 85820020]

約数ペア:

[(1, 85820020), (2, 42910010), (4, 21455005), (5, 17164004), (10, 8582002), (11, 7801820), (13, 6601540), (20, 4291001), (22, 3900910), (26, 3300770), (37, 2319460), (44, 1950455), (52, 1650385), (55, 1560364), (65, 1320308), (74, 1159730), (110, 780182), (130, 660154), (143, 600140), (148, 579865), (185, 463892), (220, 390091), (260, 330077), (286, 300070), (370, 231946), (407, 210860), (481, 178420), (572, 150035), (715, 120028), (740, 115973), (811, 105820), (814, 105430), (962, 89210), (1430, 60014), (1622, 52910), (1628, 52715), (1924, 44605), (2035, 42172), (2405, 35684), (2860, 30007), (3244, 26455), (4055, 21164), (4070, 21086), (4810, 17842), (5291, 16220), (8110, 10582), (8140, 10543), (8921, 9620)]