12912640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:137

約数の個数: 96

約数和(自身を含む): 33710040

約数和(自身を除く): 20797400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 97, 104, 128, 130, 160, 194, 208, 256, 260, 320, 388, 416, 485, 512, 520, 640, 776, 832, 970, 1024, 1040, 1261, 1280, 1552, 1664, 1940, 2048, 2080, 2522, 2560, 3104, 3328, 3880, 4160, 5044, 5120, 6208, 6305, 6656, 7760, 8320, 10088, 10240, 12416, 12610, 13312, 15520, 16640, 20176, 24832, 25220, 26624, 31040, 33280, 40352, 49664, 50440, 62080, 66560, 80704, 99328, 100880, 124160, 133120, 161408, 198656, 201760, 248320, 322816, 403520, 496640, 645632, 807040, 993280, 1291264, 1614080, 2582528, 3228160, 6456320, 12912640]

約数ペア:

[(1, 12912640), (2, 6456320), (4, 3228160), (5, 2582528), (8, 1614080), (10, 1291264), (13, 993280), (16, 807040), (20, 645632), (26, 496640), (32, 403520), (40, 322816), (52, 248320), (64, 201760), (65, 198656), (80, 161408), (97, 133120), (104, 124160), (128, 100880), (130, 99328), (160, 80704), (194, 66560), (208, 62080), (256, 50440), (260, 49664), (320, 40352), (388, 33280), (416, 31040), (485, 26624), (512, 25220), (520, 24832), (640, 20176), (776, 16640), (832, 15520), (970, 13312), (1024, 12610), (1040, 12416), (1261, 10240), (1280, 10088), (1552, 8320), (1664, 7760), (1940, 6656), (2048, 6305), (2080, 6208), (2522, 5120), (2560, 5044), (3104, 4160), (3328, 3880)]