20795280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7877}}^1$

素因数の和:7904

約数の個数: 80

約数和(自身を含む): 70334784

約数和(自身を除く): 49539504

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7877, 15754, 23631, 31508, 39385, 47262, 63016, 78770, 86647, 94524, 118155, 126032, 157540, 173294, 189048, 236310, 259941, 315080, 346588, 378096, 433235, 472620, 519882, 630160, 693176, 866470, 945240, 1039764, 1299705, 1386352, 1732940, 1890480, 2079528, 2599410, 3465880, 4159056, 5198820, 6931760, 10397640, 20795280]

約数ペア:

[(1, 20795280), (2, 10397640), (3, 6931760), (4, 5198820), (5, 4159056), (6, 3465880), (8, 2599410), (10, 2079528), (11, 1890480), (12, 1732940), (15, 1386352), (16, 1299705), (20, 1039764), (22, 945240), (24, 866470), (30, 693176), (33, 630160), (40, 519882), (44, 472620), (48, 433235), (55, 378096), (60, 346588), (66, 315080), (80, 259941), (88, 236310), (110, 189048), (120, 173294), (132, 157540), (165, 126032), (176, 118155), (220, 94524), (240, 86647), (264, 78770), (330, 63016), (440, 47262), (528, 39385), (660, 31508), (880, 23631), (1320, 15754), (2640, 7877)]