2179840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 5665968

約数和(自身を除く): 3486128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 131, 160, 208, 256, 260, 262, 320, 416, 520, 524, 640, 655, 832, 1040, 1048, 1280, 1310, 1664, 1703, 2080, 2096, 2620, 3328, 3406, 4160, 4192, 5240, 6812, 8320, 8384, 8515, 10480, 13624, 16640, 16768, 17030, 20960, 27248, 33536, 34060, 41920, 54496, 68120, 83840, 108992, 136240, 167680, 217984, 272480, 435968, 544960, 1089920, 2179840]

約数ペア:

[(1, 2179840), (2, 1089920), (4, 544960), (5, 435968), (8, 272480), (10, 217984), (13, 167680), (16, 136240), (20, 108992), (26, 83840), (32, 68120), (40, 54496), (52, 41920), (64, 34060), (65, 33536), (80, 27248), (104, 20960), (128, 17030), (130, 16768), (131, 16640), (160, 13624), (208, 10480), (256, 8515), (260, 8384), (262, 8320), (320, 6812), (416, 5240), (520, 4192), (524, 4160), (640, 3406), (655, 3328), (832, 2620), (1040, 2096), (1048, 2080), (1280, 1703), (1310, 1664)]