28011625720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1\times {\mathrm{4817}}^1$

素因数の和:5105

約数の個数: 128

約数和(自身を含む): 69497144640

約数和(自身を除く): 41485518920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 211, 212, 260, 265, 422, 424, 520, 530, 689, 844, 1055, 1060, 1378, 1688, 2110, 2120, 2743, 2756, 3445, 4220, 4817, 5486, 5512, 6890, 8440, 9634, 10972, 11183, 13715, 13780, 19268, 21944, 22366, 24085, 27430, 27560, 38536, 44732, 48170, 54860, 55915, 62621, 89464, 96340, 109720, 111830, 125242, 145379, 192680, 223660, 250484, 255301, 290758, 313105, 447320, 500968, 510602, 581516, 626210, 726895, 1016387, 1021204, 1163032, 1252420, 1276505, 1453790, 2032774, 2042408, 2504840, 2553010, 2907580, 3318913, 4065548, 5081935, 5106020, 5815160, 6637826, 8131096, 10163870, 10212040, 13213031, 13275652, 16594565, 20327740, 26426062, 26551304, 33189130, 40655480, 52852124, 53868511, 66065155, 66378260, 105704248, 107737022, 132130310, 132756520, 215474044, 264260620, 269342555, 430948088, 528521240, 538685110, 700290643, 1077370220, 1400581286, 2154740440, 2801162572, 3501453215, 5602325144, 7002906430, 14005812860, 28011625720]

約数ペア:

[(1, 28011625720), (2, 14005812860), (4, 7002906430), (5, 5602325144), (8, 3501453215), (10, 2801162572), (13, 2154740440), (20, 1400581286), (26, 1077370220), (40, 700290643), (52, 538685110), (53, 528521240), (65, 430948088), (104, 269342555), (106, 264260620), (130, 215474044), (211, 132756520), (212, 132130310), (260, 107737022), (265, 105704248), (422, 66378260), (424, 66065155), (520, 53868511), (530, 52852124), (689, 40655480), (844, 33189130), (1055, 26551304), (1060, 26426062), (1378, 20327740), (1688, 16594565), (2110, 13275652), (2120, 13213031), (2743, 10212040), (2756, 10163870), (3445, 8131096), (4220, 6637826), (4817, 5815160), (5486, 5106020), (5512, 5081935), (6890, 4065548), (8440, 3318913), (9634, 2907580), (10972, 2553010), (11183, 2504840), (13715, 2042408), (13780, 2032774), (19268, 1453790), (21944, 1276505), (22366, 1252420), (24085, 1163032), (27430, 1021204), (27560, 1016387), (38536, 726895), (44732, 626210), (48170, 581516), (54860, 510602), (55915, 500968), (62621, 447320), (89464, 313105), (96340, 290758), (109720, 255301), (111830, 250484), (125242, 223660), (145379, 192680)]