257111244

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{11689}}^1$

素因数の和:11759

約数の個数: 72

約数和(自身を含む): 714866880

約数和(自身を除く): 457755636

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 47, 52, 78, 94, 117, 141, 156, 188, 234, 282, 423, 468, 564, 611, 846, 1222, 1692, 1833, 2444, 3666, 5499, 7332, 10998, 11689, 21996, 23378, 35067, 46756, 70134, 105201, 140268, 151957, 210402, 303914, 420804, 455871, 549383, 607828, 911742, 1098766, 1367613, 1648149, 1823484, 2197532, 2735226, 3296298, 4944447, 5470452, 6592596, 7141979, 9888894, 14283958, 19777788, 21425937, 28567916, 42851874, 64277811, 85703748, 128555622, 257111244]

約数ペア:

[(1, 257111244), (2, 128555622), (3, 85703748), (4, 64277811), (6, 42851874), (9, 28567916), (12, 21425937), (13, 19777788), (18, 14283958), (26, 9888894), (36, 7141979), (39, 6592596), (47, 5470452), (52, 4944447), (78, 3296298), (94, 2735226), (117, 2197532), (141, 1823484), (156, 1648149), (188, 1367613), (234, 1098766), (282, 911742), (423, 607828), (468, 549383), (564, 455871), (611, 420804), (846, 303914), (1222, 210402), (1692, 151957), (1833, 140268), (2444, 105201), (3666, 70134), (5499, 46756), (7332, 35067), (10998, 23378), (11689, 21996)]