81586768

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{467}}^1$

素因数の和:715

約数の個数: 40

約数和(自身を含む): 161909280

約数和(自身を除く): 80322512

約数列:

[1, 2, 4, 8, 16, 61, 122, 179, 244, 358, 467, 488, 716, 934, 976, 1432, 1868, 2864, 3736, 7472, 10919, 21838, 28487, 43676, 56974, 83593, 87352, 113948, 167186, 174704, 227896, 334372, 455792, 668744, 1337488, 5099173, 10198346, 20396692, 40793384, 81586768]

約数ペア:

[(1, 81586768), (2, 40793384), (4, 20396692), (8, 10198346), (16, 5099173), (61, 1337488), (122, 668744), (179, 455792), (244, 334372), (358, 227896), (467, 174704), (488, 167186), (716, 113948), (934, 87352), (976, 83593), (1432, 56974), (1868, 43676), (2864, 28487), (3736, 21838), (7472, 10919)]