659082320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20443}}^1$

素因数の和:20500

約数の個数: 80

約数和(自身を含む): 1703557632

約数和(自身を除く): 1044475312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 20443, 32240, 40886, 81772, 102215, 163544, 204430, 265759, 327088, 408860, 531518, 633733, 817720, 1063036, 1267466, 1328795, 1635440, 2126072, 2534932, 2657590, 3168665, 4252144, 5069864, 5315180, 6337330, 8238529, 10139728, 10630360, 12674660, 16477058, 21260720, 25349320, 32954116, 41192645, 50698640, 65908232, 82385290, 131816464, 164770580, 329541160, 659082320]

約数ペア:

[(1, 659082320), (2, 329541160), (4, 164770580), (5, 131816464), (8, 82385290), (10, 65908232), (13, 50698640), (16, 41192645), (20, 32954116), (26, 25349320), (31, 21260720), (40, 16477058), (52, 12674660), (62, 10630360), (65, 10139728), (80, 8238529), (104, 6337330), (124, 5315180), (130, 5069864), (155, 4252144), (208, 3168665), (248, 2657590), (260, 2534932), (310, 2126072), (403, 1635440), (496, 1328795), (520, 1267466), (620, 1063036), (806, 817720), (1040, 633733), (1240, 531518), (1612, 408860), (2015, 327088), (2480, 265759), (3224, 204430), (4030, 163544), (6448, 102215), (8060, 81772), (16120, 40886), (20443, 32240)]