261501864

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1423}}^1$

素因数の和:1495

約数の個数: 128

約数和(自身を含む): 765542400

約数和(自身を除く): 504040536

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 31, 38, 39, 52, 57, 62, 76, 78, 93, 104, 114, 124, 152, 156, 186, 228, 247, 248, 312, 372, 403, 456, 494, 589, 741, 744, 806, 988, 1178, 1209, 1423, 1482, 1612, 1767, 1976, 2356, 2418, 2846, 2964, 3224, 3534, 4269, 4712, 4836, 5692, 5928, 7068, 7657, 8538, 9672, 11384, 14136, 15314, 17076, 18499, 22971, 27037, 30628, 34152, 36998, 44113, 45942, 54074, 55497, 61256, 73996, 81111, 88226, 91884, 108148, 110994, 132339, 147992, 162222, 176452, 183768, 216296, 221988, 264678, 324444, 351481, 352904, 443976, 529356, 573469, 648888, 702962, 838147, 1054443, 1058712, 1146938, 1405924, 1676294, 1720407, 2108886, 2293876, 2514441, 2811848, 3352588, 3440814, 4217772, 4587752, 5028882, 6705176, 6881628, 8435544, 10057764, 10895911, 13763256, 20115528, 21791822, 32687733, 43583644, 65375466, 87167288, 130750932, 261501864]

約数ペア:

[(1, 261501864), (2, 130750932), (3, 87167288), (4, 65375466), (6, 43583644), (8, 32687733), (12, 21791822), (13, 20115528), (19, 13763256), (24, 10895911), (26, 10057764), (31, 8435544), (38, 6881628), (39, 6705176), (52, 5028882), (57, 4587752), (62, 4217772), (76, 3440814), (78, 3352588), (93, 2811848), (104, 2514441), (114, 2293876), (124, 2108886), (152, 1720407), (156, 1676294), (186, 1405924), (228, 1146938), (247, 1058712), (248, 1054443), (312, 838147), (372, 702962), (403, 648888), (456, 573469), (494, 529356), (589, 443976), (741, 352904), (744, 351481), (806, 324444), (988, 264678), (1178, 221988), (1209, 216296), (1423, 183768), (1482, 176452), (1612, 162222), (1767, 147992), (1976, 132339), (2356, 110994), (2418, 108148), (2846, 91884), (2964, 88226), (3224, 81111), (3534, 73996), (4269, 61256), (4712, 55497), (4836, 54074), (5692, 45942), (5928, 44113), (7068, 36998), (7657, 34152), (8538, 30628), (9672, 27037), (11384, 22971), (14136, 18499), (15314, 17076)]