21217500

素因数分解:

$2^2\times 3^2\times 5^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:94

約数の個数: 180

約数和(自身を含む): 71639568

約数和(自身を除く): 50422068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 25, 30, 36, 41, 45, 46, 50, 60, 69, 75, 82, 90, 92, 100, 115, 123, 125, 138, 150, 164, 180, 205, 207, 225, 230, 246, 250, 276, 300, 345, 369, 375, 410, 414, 450, 460, 492, 500, 575, 615, 625, 690, 738, 750, 820, 828, 900, 943, 1025, 1035, 1125, 1150, 1230, 1250, 1380, 1476, 1500, 1725, 1845, 1875, 1886, 2050, 2070, 2250, 2300, 2460, 2500, 2829, 2875, 3075, 3450, 3690, 3750, 3772, 4100, 4140, 4500, 4715, 5125, 5175, 5625, 5658, 5750, 6150, 6900, 7380, 7500, 8487, 8625, 9225, 9430, 10250, 10350, 11250, 11316, 11500, 12300, 14145, 14375, 15375, 16974, 17250, 18450, 18860, 20500, 20700, 22500, 23575, 25625, 25875, 28290, 28750, 30750, 33948, 34500, 36900, 42435, 43125, 46125, 47150, 51250, 51750, 56580, 57500, 61500, 70725, 76875, 84870, 86250, 92250, 94300, 102500, 103500, 117875, 129375, 141450, 153750, 169740, 172500, 184500, 212175, 230625, 235750, 258750, 282900, 307500, 353625, 424350, 461250, 471500, 517500, 589375, 707250, 848700, 922500, 1060875, 1178750, 1414500, 1768125, 2121750, 2357500, 3536250, 4243500, 5304375, 7072500, 10608750, 21217500]

約数ペア:

[(1, 21217500), (2, 10608750), (3, 7072500), (4, 5304375), (5, 4243500), (6, 3536250), (9, 2357500), (10, 2121750), (12, 1768125), (15, 1414500), (18, 1178750), (20, 1060875), (23, 922500), (25, 848700), (30, 707250), (36, 589375), (41, 517500), (45, 471500), (46, 461250), (50, 424350), (60, 353625), (69, 307500), (75, 282900), (82, 258750), (90, 235750), (92, 230625), (100, 212175), (115, 184500), (123, 172500), (125, 169740), (138, 153750), (150, 141450), (164, 129375), (180, 117875), (205, 103500), (207, 102500), (225, 94300), (230, 92250), (246, 86250), (250, 84870), (276, 76875), (300, 70725), (345, 61500), (369, 57500), (375, 56580), (410, 51750), (414, 51250), (450, 47150), (460, 46125), (492, 43125), (500, 42435), (575, 36900), (615, 34500), (625, 33948), (690, 30750), (738, 28750), (750, 28290), (820, 25875), (828, 25625), (900, 23575), (943, 22500), (1025, 20700), (1035, 20500), (1125, 18860), (1150, 18450), (1230, 17250), (1250, 16974), (1380, 15375), (1476, 14375), (1500, 14145), (1725, 12300), (1845, 11500), (1875, 11316), (1886, 11250), (2050, 10350), (2070, 10250), (2250, 9430), (2300, 9225), (2460, 8625), (2500, 8487), (2829, 7500), (2875, 7380), (3075, 6900), (3450, 6150), (3690, 5750), (3750, 5658), (3772, 5625), (4100, 5175), (4140, 5125), (4500, 4715)]