8653840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 22217328

約数和(自身を除く): 13563488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 157, 208, 212, 260, 265, 314, 424, 520, 530, 628, 689, 785, 848, 1040, 1060, 1256, 1378, 1570, 2041, 2120, 2512, 2756, 3140, 3445, 4082, 4240, 5512, 6280, 6890, 8164, 8321, 10205, 11024, 12560, 13780, 16328, 16642, 20410, 27560, 32656, 33284, 40820, 41605, 55120, 66568, 81640, 83210, 108173, 133136, 163280, 166420, 216346, 332840, 432692, 540865, 665680, 865384, 1081730, 1730768, 2163460, 4326920, 8653840]

約数ペア:

[(1, 8653840), (2, 4326920), (4, 2163460), (5, 1730768), (8, 1081730), (10, 865384), (13, 665680), (16, 540865), (20, 432692), (26, 332840), (40, 216346), (52, 166420), (53, 163280), (65, 133136), (80, 108173), (104, 83210), (106, 81640), (130, 66568), (157, 55120), (208, 41605), (212, 40820), (260, 33284), (265, 32656), (314, 27560), (424, 20410), (520, 16642), (530, 16328), (628, 13780), (689, 12560), (785, 11024), (848, 10205), (1040, 8321), (1060, 8164), (1256, 6890), (1378, 6280), (1570, 5512), (2041, 4240), (2120, 4082), (2512, 3445), (2756, 3140)]