81036340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{521}}^1$

素因数の和:649

約数の個数: 96

約数和(自身を含む): 214679808

約数和(自身を除く): 133643468

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 101, 110, 140, 154, 202, 220, 308, 385, 404, 505, 521, 707, 770, 1010, 1042, 1111, 1414, 1540, 2020, 2084, 2222, 2605, 2828, 3535, 3647, 4444, 5210, 5555, 5731, 7070, 7294, 7777, 10420, 11110, 11462, 14140, 14588, 15554, 18235, 22220, 22924, 28655, 31108, 36470, 38885, 40117, 52621, 57310, 72940, 77770, 80234, 105242, 114620, 155540, 160468, 200585, 210484, 263105, 368347, 401170, 526210, 578831, 736694, 802340, 1052420, 1157662, 1473388, 1841735, 2315324, 2894155, 3683470, 4051817, 5788310, 7366940, 8103634, 11576620, 16207268, 20259085, 40518170, 81036340]

約数ペア:

[(1, 81036340), (2, 40518170), (4, 20259085), (5, 16207268), (7, 11576620), (10, 8103634), (11, 7366940), (14, 5788310), (20, 4051817), (22, 3683470), (28, 2894155), (35, 2315324), (44, 1841735), (55, 1473388), (70, 1157662), (77, 1052420), (101, 802340), (110, 736694), (140, 578831), (154, 526210), (202, 401170), (220, 368347), (308, 263105), (385, 210484), (404, 200585), (505, 160468), (521, 155540), (707, 114620), (770, 105242), (1010, 80234), (1042, 77770), (1111, 72940), (1414, 57310), (1540, 52621), (2020, 40117), (2084, 38885), (2222, 36470), (2605, 31108), (2828, 28655), (3535, 22924), (3647, 22220), (4444, 18235), (5210, 15554), (5555, 14588), (5731, 14140), (7070, 11462), (7294, 11110), (7777, 10420)]