80160520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^2$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 207645120

約数和(自身を除く): 127484600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 89, 92, 110, 115, 178, 184, 220, 230, 253, 356, 440, 445, 460, 506, 712, 890, 920, 979, 1012, 1265, 1780, 1958, 2024, 2047, 2530, 3560, 3916, 4094, 4895, 5060, 7832, 7921, 8188, 9790, 10120, 10235, 15842, 16376, 19580, 20470, 22517, 31684, 39160, 39605, 40940, 45034, 63368, 79210, 81880, 87131, 90068, 112585, 158420, 174262, 180136, 182183, 225170, 316840, 348524, 364366, 435655, 450340, 697048, 728732, 871310, 900680, 910915, 1457464, 1742620, 1821830, 2004013, 3485240, 3643660, 4008026, 7287320, 8016052, 10020065, 16032104, 20040130, 40080260, 80160520]

約数ペア:

[(1, 80160520), (2, 40080260), (4, 20040130), (5, 16032104), (8, 10020065), (10, 8016052), (11, 7287320), (20, 4008026), (22, 3643660), (23, 3485240), (40, 2004013), (44, 1821830), (46, 1742620), (55, 1457464), (88, 910915), (89, 900680), (92, 871310), (110, 728732), (115, 697048), (178, 450340), (184, 435655), (220, 364366), (230, 348524), (253, 316840), (356, 225170), (440, 182183), (445, 180136), (460, 174262), (506, 158420), (712, 112585), (890, 90068), (920, 87131), (979, 81880), (1012, 79210), (1265, 63368), (1780, 45034), (1958, 40940), (2024, 39605), (2047, 39160), (2530, 31684), (3560, 22517), (3916, 20470), (4094, 19580), (4895, 16376), (5060, 15842), (7832, 10235), (7921, 10120), (8188, 9790)]