80349140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{281}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 185690232

約数和(自身を除く): 105341092

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 281, 290, 340, 493, 562, 580, 841, 986, 1124, 1405, 1682, 1972, 2465, 2810, 3364, 4205, 4777, 4930, 5620, 8149, 8410, 9554, 9860, 14297, 16298, 16820, 19108, 23885, 28594, 32596, 40745, 47770, 57188, 71485, 81490, 95540, 138533, 142970, 162980, 236321, 277066, 285940, 472642, 554132, 692665, 945284, 1181605, 1385330, 2363210, 2770660, 4017457, 4726420, 8034914, 16069828, 20087285, 40174570, 80349140]

約数ペア:

[(1, 80349140), (2, 40174570), (4, 20087285), (5, 16069828), (10, 8034914), (17, 4726420), (20, 4017457), (29, 2770660), (34, 2363210), (58, 1385330), (68, 1181605), (85, 945284), (116, 692665), (145, 554132), (170, 472642), (281, 285940), (290, 277066), (340, 236321), (493, 162980), (562, 142970), (580, 138533), (841, 95540), (986, 81490), (1124, 71485), (1405, 57188), (1682, 47770), (1972, 40745), (2465, 32596), (2810, 28594), (3364, 23885), (4205, 19108), (4777, 16820), (4930, 16298), (5620, 14297), (8149, 9860), (8410, 9554)]