2784661640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{521}}^1\times {\mathrm{2843}}^1$

素因数の和:3422

約数の個数: 64

約数和(自身を含む): 6413333760

約数和(自身を除く): 3628672120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 521, 940, 1042, 1880, 2084, 2605, 2843, 4168, 5210, 5686, 10420, 11372, 14215, 20840, 22744, 24487, 28430, 48974, 56860, 97948, 113720, 122435, 133621, 195896, 244870, 267242, 489740, 534484, 668105, 979480, 1068968, 1336210, 1481203, 2672420, 2962406, 5344840, 5924812, 7406015, 11849624, 14812030, 29624060, 59248120, 69616541, 139233082, 278466164, 348082705, 556932328, 696165410, 1392330820, 2784661640]

約数ペア:

[(1, 2784661640), (2, 1392330820), (4, 696165410), (5, 556932328), (8, 348082705), (10, 278466164), (20, 139233082), (40, 69616541), (47, 59248120), (94, 29624060), (188, 14812030), (235, 11849624), (376, 7406015), (470, 5924812), (521, 5344840), (940, 2962406), (1042, 2672420), (1880, 1481203), (2084, 1336210), (2605, 1068968), (2843, 979480), (4168, 668105), (5210, 534484), (5686, 489740), (10420, 267242), (11372, 244870), (14215, 195896), (20840, 133621), (22744, 122435), (24487, 113720), (28430, 97948), (48974, 56860)]