19964597640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{345887}}^1$

素因数の和:345951

約数の個数: 128

約数和(自身を含む): 66244469760

約数和(自身を除く): 46279872120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 37, 39, 40, 52, 60, 65, 74, 78, 104, 111, 120, 130, 148, 156, 185, 195, 222, 260, 296, 312, 370, 390, 444, 481, 520, 555, 740, 780, 888, 962, 1110, 1443, 1480, 1560, 1924, 2220, 2405, 2886, 3848, 4440, 4810, 5772, 7215, 9620, 11544, 14430, 19240, 28860, 57720, 345887, 691774, 1037661, 1383548, 1729435, 2075322, 2767096, 3458870, 4150644, 4496531, 5188305, 6917740, 8301288, 8993062, 10376610, 12797819, 13489593, 13835480, 17986124, 20753220, 22482655, 25595638, 26979186, 35972248, 38393457, 41506440, 44965310, 51191276, 53958372, 63989095, 67447965, 76786914, 89930620, 102382552, 107916744, 127978190, 134895930, 153573828, 166371647, 179861240, 191967285, 255956380, 269791860, 307147656, 332743294, 383934570, 499114941, 511912760, 539583720, 665486588, 767869140, 831858235, 998229882, 1330973176, 1535738280, 1663716470, 1996459764, 2495574705, 3327432940, 3992919528, 4991149410, 6654865880, 9982298820, 19964597640]

約数ペア:

[(1, 19964597640), (2, 9982298820), (3, 6654865880), (4, 4991149410), (5, 3992919528), (6, 3327432940), (8, 2495574705), (10, 1996459764), (12, 1663716470), (13, 1535738280), (15, 1330973176), (20, 998229882), (24, 831858235), (26, 767869140), (30, 665486588), (37, 539583720), (39, 511912760), (40, 499114941), (52, 383934570), (60, 332743294), (65, 307147656), (74, 269791860), (78, 255956380), (104, 191967285), (111, 179861240), (120, 166371647), (130, 153573828), (148, 134895930), (156, 127978190), (185, 107916744), (195, 102382552), (222, 89930620), (260, 76786914), (296, 67447965), (312, 63989095), (370, 53958372), (390, 51191276), (444, 44965310), (481, 41506440), (520, 38393457), (555, 35972248), (740, 26979186), (780, 25595638), (888, 22482655), (962, 20753220), (1110, 17986124), (1443, 13835480), (1480, 13489593), (1560, 12797819), (1924, 10376610), (2220, 8993062), (2405, 8301288), (2886, 6917740), (3848, 5188305), (4440, 4496531), (4810, 4150644), (5772, 3458870), (7215, 2767096), (9620, 2075322), (11544, 1729435), (14430, 1383548), (19240, 1037661), (28860, 691774), (57720, 345887)]