20145725320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{22921}}^1$

素因数の和:23055

約数の個数: 128

約数和(自身を含む): 53736503040

約数和(自身を除く): 33590777720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 73, 86, 140, 146, 172, 215, 280, 292, 301, 344, 365, 430, 511, 584, 602, 730, 860, 1022, 1204, 1460, 1505, 1720, 2044, 2408, 2555, 2920, 3010, 3139, 4088, 5110, 6020, 6278, 10220, 12040, 12556, 15695, 20440, 21973, 22921, 25112, 31390, 43946, 45842, 62780, 87892, 91684, 109865, 114605, 125560, 160447, 175784, 183368, 219730, 229210, 320894, 439460, 458420, 641788, 802235, 878920, 916840, 985603, 1283576, 1604470, 1673233, 1971206, 3208940, 3346466, 3942412, 4928015, 6417880, 6692932, 6899221, 7884824, 8366165, 9856030, 11712631, 13385864, 13798442, 16732330, 19712060, 23425262, 27596884, 33464660, 34496105, 39424120, 46850524, 55193768, 58563155, 66929320, 68992210, 71949019, 93701048, 117126310, 137984420, 143898038, 234252620, 275968840, 287796076, 359745095, 468505240, 503643133, 575592152, 719490190, 1007286266, 1438980380, 2014572532, 2518215665, 2877960760, 4029145064, 5036431330, 10072862660, 20145725320]

約数ペア:

[(1, 20145725320), (2, 10072862660), (4, 5036431330), (5, 4029145064), (7, 2877960760), (8, 2518215665), (10, 2014572532), (14, 1438980380), (20, 1007286266), (28, 719490190), (35, 575592152), (40, 503643133), (43, 468505240), (56, 359745095), (70, 287796076), (73, 275968840), (86, 234252620), (140, 143898038), (146, 137984420), (172, 117126310), (215, 93701048), (280, 71949019), (292, 68992210), (301, 66929320), (344, 58563155), (365, 55193768), (430, 46850524), (511, 39424120), (584, 34496105), (602, 33464660), (730, 27596884), (860, 23425262), (1022, 19712060), (1204, 16732330), (1460, 13798442), (1505, 13385864), (1720, 11712631), (2044, 9856030), (2408, 8366165), (2555, 7884824), (2920, 6899221), (3010, 6692932), (3139, 6417880), (4088, 4928015), (5110, 3942412), (6020, 3346466), (6278, 3208940), (10220, 1971206), (12040, 1673233), (12556, 1604470), (15695, 1283576), (20440, 985603), (21973, 916840), (22921, 878920), (25112, 802235), (31390, 641788), (43946, 458420), (45842, 439460), (62780, 320894), (87892, 229210), (91684, 219730), (109865, 183368), (114605, 175784), (125560, 160447)]