20492880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{829}}^1$

素因数の和:948

約数の個数: 80

約数和(自身を含む): 64222080

約数和(自身を除く): 43729200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 103, 120, 206, 240, 309, 412, 515, 618, 824, 829, 1030, 1236, 1545, 1648, 1658, 2060, 2472, 2487, 3090, 3316, 4120, 4145, 4944, 4974, 6180, 6632, 8240, 8290, 9948, 12360, 12435, 13264, 16580, 19896, 24720, 24870, 33160, 39792, 49740, 66320, 85387, 99480, 170774, 198960, 256161, 341548, 426935, 512322, 683096, 853870, 1024644, 1280805, 1366192, 1707740, 2049288, 2561610, 3415480, 4098576, 5123220, 6830960, 10246440, 20492880]

約数ペア:

[(1, 20492880), (2, 10246440), (3, 6830960), (4, 5123220), (5, 4098576), (6, 3415480), (8, 2561610), (10, 2049288), (12, 1707740), (15, 1366192), (16, 1280805), (20, 1024644), (24, 853870), (30, 683096), (40, 512322), (48, 426935), (60, 341548), (80, 256161), (103, 198960), (120, 170774), (206, 99480), (240, 85387), (309, 66320), (412, 49740), (515, 39792), (618, 33160), (824, 24870), (829, 24720), (1030, 19896), (1236, 16580), (1545, 13264), (1648, 12435), (1658, 12360), (2060, 9948), (2472, 8290), (2487, 8240), (3090, 6632), (3316, 6180), (4120, 4974), (4145, 4944)]