20165280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{977}}^1$

素因数の和:1038

約数の個数: 96

約数和(自身を含む): 65064384

約数和(自身を除く): 44899104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 80, 86, 96, 120, 129, 160, 172, 215, 240, 258, 344, 430, 480, 516, 645, 688, 860, 977, 1032, 1290, 1376, 1720, 1954, 2064, 2580, 2931, 3440, 3908, 4128, 4885, 5160, 5862, 6880, 7816, 9770, 10320, 11724, 14655, 15632, 19540, 20640, 23448, 29310, 31264, 39080, 42011, 46896, 58620, 78160, 84022, 93792, 117240, 126033, 156320, 168044, 210055, 234480, 252066, 336088, 420110, 468960, 504132, 630165, 672176, 840220, 1008264, 1260330, 1344352, 1680440, 2016528, 2520660, 3360880, 4033056, 5041320, 6721760, 10082640, 20165280]

約数ペア:

[(1, 20165280), (2, 10082640), (3, 6721760), (4, 5041320), (5, 4033056), (6, 3360880), (8, 2520660), (10, 2016528), (12, 1680440), (15, 1344352), (16, 1260330), (20, 1008264), (24, 840220), (30, 672176), (32, 630165), (40, 504132), (43, 468960), (48, 420110), (60, 336088), (80, 252066), (86, 234480), (96, 210055), (120, 168044), (129, 156320), (160, 126033), (172, 117240), (215, 93792), (240, 84022), (258, 78160), (344, 58620), (430, 46896), (480, 42011), (516, 39080), (645, 31264), (688, 29310), (860, 23448), (977, 20640), (1032, 19540), (1290, 15632), (1376, 14655), (1720, 11724), (1954, 10320), (2064, 9770), (2580, 7816), (2931, 6880), (3440, 5862), (3908, 5160), (4128, 4885)]