261979758

素因数分解:

$2^1\times 3^5\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{857}}^1$

素因数の和:928

約数の個数: 96

約数和(自身を含む): 640864224

約数和(自身を除く): 378884466

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 37, 51, 54, 74, 81, 102, 111, 153, 162, 222, 243, 306, 333, 459, 486, 629, 666, 857, 918, 999, 1258, 1377, 1714, 1887, 1998, 2571, 2754, 2997, 3774, 4131, 5142, 5661, 5994, 7713, 8262, 8991, 11322, 14569, 15426, 16983, 17982, 23139, 29138, 31709, 33966, 43707, 46278, 50949, 63418, 69417, 87414, 95127, 101898, 131121, 138834, 152847, 190254, 208251, 262242, 285381, 305694, 393363, 416502, 539053, 570762, 786726, 856143, 1078106, 1180089, 1617159, 1712286, 2360178, 2568429, 3234318, 3540267, 4851477, 5136858, 7080534, 7705287, 9702954, 14554431, 15410574, 29108862, 43663293, 87326586, 130989879, 261979758]

約数ペア:

[(1, 261979758), (2, 130989879), (3, 87326586), (6, 43663293), (9, 29108862), (17, 15410574), (18, 14554431), (27, 9702954), (34, 7705287), (37, 7080534), (51, 5136858), (54, 4851477), (74, 3540267), (81, 3234318), (102, 2568429), (111, 2360178), (153, 1712286), (162, 1617159), (222, 1180089), (243, 1078106), (306, 856143), (333, 786726), (459, 570762), (486, 539053), (629, 416502), (666, 393363), (857, 305694), (918, 285381), (999, 262242), (1258, 208251), (1377, 190254), (1714, 152847), (1887, 138834), (1998, 131121), (2571, 101898), (2754, 95127), (2997, 87414), (3774, 69417), (4131, 63418), (5142, 50949), (5661, 46278), (5994, 43707), (7713, 33966), (8262, 31709), (8991, 29138), (11322, 23139), (14569, 17982), (15426, 16983)]