20176917760

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{829643}}^1$

素因数の和:829683

約数の個数: 72

約数和(自身を含む): 50873770080

約数和(自身を除く): 30696852320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 4864, 6080, 12160, 24320, 829643, 1659286, 3318572, 4148215, 6637144, 8296430, 13274288, 15763217, 16592860, 26548576, 31526434, 33185720, 53097152, 63052868, 66371440, 78816085, 106194304, 126105736, 132742880, 157632170, 212388608, 252211472, 265485760, 315264340, 504422944, 530971520, 630528680, 1008845888, 1061943040, 1261057360, 2017691776, 2522114720, 4035383552, 5044229440, 10088458880, 20176917760]

約数ペア:

[(1, 20176917760), (2, 10088458880), (4, 5044229440), (5, 4035383552), (8, 2522114720), (10, 2017691776), (16, 1261057360), (19, 1061943040), (20, 1008845888), (32, 630528680), (38, 530971520), (40, 504422944), (64, 315264340), (76, 265485760), (80, 252211472), (95, 212388608), (128, 157632170), (152, 132742880), (160, 126105736), (190, 106194304), (256, 78816085), (304, 66371440), (320, 63052868), (380, 53097152), (608, 33185720), (640, 31526434), (760, 26548576), (1216, 16592860), (1280, 15763217), (1520, 13274288), (2432, 8296430), (3040, 6637144), (4864, 4148215), (6080, 3318572), (12160, 1659286), (24320, 829643)]