12925968640

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{776801}}^1$

素因数の和:776835

約数の個数: 72

約数和(自身を含む): 33343449048

約数和(自身を除く): 20417480408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 776801, 1553602, 3107204, 3884005, 6214408, 7768010, 10098413, 12428816, 15536020, 20196826, 24857632, 31072040, 40393652, 49715264, 50492065, 62144080, 80787304, 99430528, 100984130, 124288160, 161574608, 198861056, 201968260, 248576320, 323149216, 403936520, 497152640, 646298432, 807873040, 994305280, 1292596864, 1615746080, 2585193728, 3231492160, 6462984320, 12925968640]

約数ペア:

[(1, 12925968640), (2, 6462984320), (4, 3231492160), (5, 2585193728), (8, 1615746080), (10, 1292596864), (13, 994305280), (16, 807873040), (20, 646298432), (26, 497152640), (32, 403936520), (40, 323149216), (52, 248576320), (64, 201968260), (65, 198861056), (80, 161574608), (104, 124288160), (128, 100984130), (130, 99430528), (160, 80787304), (208, 62144080), (256, 50492065), (260, 49715264), (320, 40393652), (416, 31072040), (520, 24857632), (640, 20196826), (832, 15536020), (1040, 12428816), (1280, 10098413), (1664, 7768010), (2080, 6214408), (3328, 3884005), (4160, 3107204), (8320, 1553602), (16640, 776801)]