21798400

素因数分解:

$2^9\times 5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:172

約数の個数: 120

約数和(自身を含む): 58605624

約数和(自身を除く): 36807224

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 131, 160, 200, 208, 256, 260, 262, 320, 325, 400, 416, 512, 520, 524, 640, 650, 655, 800, 832, 1040, 1048, 1280, 1300, 1310, 1600, 1664, 1703, 2080, 2096, 2560, 2600, 2620, 3200, 3275, 3328, 3406, 4160, 4192, 5200, 5240, 6400, 6550, 6656, 6812, 8320, 8384, 8515, 10400, 10480, 12800, 13100, 13624, 16640, 16768, 17030, 20800, 20960, 26200, 27248, 33280, 33536, 34060, 41600, 41920, 42575, 52400, 54496, 67072, 68120, 83200, 83840, 85150, 104800, 108992, 136240, 166400, 167680, 170300, 209600, 217984, 272480, 335360, 340600, 419200, 435968, 544960, 681200, 838400, 871936, 1089920, 1362400, 1676800, 2179840, 2724800, 4359680, 5449600, 10899200, 21798400]

約数ペア:

[(1, 21798400), (2, 10899200), (4, 5449600), (5, 4359680), (8, 2724800), (10, 2179840), (13, 1676800), (16, 1362400), (20, 1089920), (25, 871936), (26, 838400), (32, 681200), (40, 544960), (50, 435968), (52, 419200), (64, 340600), (65, 335360), (80, 272480), (100, 217984), (104, 209600), (128, 170300), (130, 167680), (131, 166400), (160, 136240), (200, 108992), (208, 104800), (256, 85150), (260, 83840), (262, 83200), (320, 68120), (325, 67072), (400, 54496), (416, 52400), (512, 42575), (520, 41920), (524, 41600), (640, 34060), (650, 33536), (655, 33280), (800, 27248), (832, 26200), (1040, 20960), (1048, 20800), (1280, 17030), (1300, 16768), (1310, 16640), (1600, 13624), (1664, 13100), (1703, 12800), (2080, 10480), (2096, 10400), (2560, 8515), (2600, 8384), (2620, 8320), (3200, 6812), (3275, 6656), (3328, 6550), (3406, 6400), (4160, 5240), (4192, 5200)]