12378880

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:549

約数の個数: 72

約数和(自身を含む): 31273200

約数和(自身を除く): 18894320

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, 509, 608, 640, 760, 1018, 1216, 1280, 1520, 2036, 2432, 2545, 3040, 4072, 4864, 5090, 6080, 8144, 9671, 10180, 12160, 16288, 19342, 20360, 24320, 32576, 38684, 40720, 48355, 65152, 77368, 81440, 96710, 130304, 154736, 162880, 193420, 309472, 325760, 386840, 618944, 651520, 773680, 1237888, 1547360, 2475776, 3094720, 6189440, 12378880]

約数ペア:

[(1, 12378880), (2, 6189440), (4, 3094720), (5, 2475776), (8, 1547360), (10, 1237888), (16, 773680), (19, 651520), (20, 618944), (32, 386840), (38, 325760), (40, 309472), (64, 193420), (76, 162880), (80, 154736), (95, 130304), (128, 96710), (152, 81440), (160, 77368), (190, 65152), (256, 48355), (304, 40720), (320, 38684), (380, 32576), (509, 24320), (608, 20360), (640, 19342), (760, 16288), (1018, 12160), (1216, 10180), (1280, 9671), (1520, 8144), (2036, 6080), (2432, 5090), (2545, 4864), (3040, 4072)]