209613720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{439}}^1$

素因数の和:649

約数の個数: 128

約数和(自身を含む): 661478400

約数和(自身を除く): 451864680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 173, 184, 230, 276, 345, 346, 439, 460, 519, 552, 690, 692, 865, 878, 920, 1038, 1317, 1380, 1384, 1730, 1756, 2076, 2195, 2595, 2634, 2760, 3460, 3512, 3979, 4152, 4390, 5190, 5268, 6585, 6920, 7958, 8780, 10097, 10380, 10536, 11937, 13170, 15916, 17560, 19895, 20194, 20760, 23874, 26340, 30291, 31832, 39790, 40388, 47748, 50485, 52680, 59685, 60582, 75947, 79580, 80776, 95496, 100970, 119370, 121164, 151455, 151894, 159160, 201940, 227841, 238740, 242328, 302910, 303788, 379735, 403880, 455682, 477480, 605820, 607576, 759470, 911364, 1139205, 1211640, 1518940, 1746781, 1822728, 2278410, 3037880, 3493562, 4556820, 5240343, 6987124, 8733905, 9113640, 10480686, 13974248, 17467810, 20961372, 26201715, 34935620, 41922744, 52403430, 69871240, 104806860, 209613720]

約数ペア:

[(1, 209613720), (2, 104806860), (3, 69871240), (4, 52403430), (5, 41922744), (6, 34935620), (8, 26201715), (10, 20961372), (12, 17467810), (15, 13974248), (20, 10480686), (23, 9113640), (24, 8733905), (30, 6987124), (40, 5240343), (46, 4556820), (60, 3493562), (69, 3037880), (92, 2278410), (115, 1822728), (120, 1746781), (138, 1518940), (173, 1211640), (184, 1139205), (230, 911364), (276, 759470), (345, 607576), (346, 605820), (439, 477480), (460, 455682), (519, 403880), (552, 379735), (690, 303788), (692, 302910), (865, 242328), (878, 238740), (920, 227841), (1038, 201940), (1317, 159160), (1380, 151894), (1384, 151455), (1730, 121164), (1756, 119370), (2076, 100970), (2195, 95496), (2595, 80776), (2634, 79580), (2760, 75947), (3460, 60582), (3512, 59685), (3979, 52680), (4152, 50485), (4390, 47748), (5190, 40388), (5268, 39790), (6585, 31832), (6920, 30291), (7958, 26340), (8780, 23874), (10097, 20760), (10380, 20194), (10536, 19895), (11937, 17560), (13170, 15916)]