20170343440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{625631}}^1$

素因数の和:625688

約数の個数: 80

約数和(自身を含む): 52132663296

約数和(自身を除く): 31962319856

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, 32240, 625631, 1251262, 2502524, 3128155, 5005048, 6256310, 8133203, 10010096, 12512620, 16266406, 19394561, 25025240, 32532812, 38789122, 40666015, 50050480, 65065624, 77578244, 81332030, 96972805, 130131248, 155156488, 162664060, 193945610, 252129293, 310312976, 325328120, 387891220, 504258586, 650656240, 775782440, 1008517172, 1260646465, 1551564880, 2017034344, 2521292930, 4034068688, 5042585860, 10085171720, 20170343440]

約数ペア:

[(1, 20170343440), (2, 10085171720), (4, 5042585860), (5, 4034068688), (8, 2521292930), (10, 2017034344), (13, 1551564880), (16, 1260646465), (20, 1008517172), (26, 775782440), (31, 650656240), (40, 504258586), (52, 387891220), (62, 325328120), (65, 310312976), (80, 252129293), (104, 193945610), (124, 162664060), (130, 155156488), (155, 130131248), (208, 96972805), (248, 81332030), (260, 77578244), (310, 65065624), (403, 50050480), (496, 40666015), (520, 38789122), (620, 32532812), (806, 25025240), (1040, 19394561), (1240, 16266406), (1612, 12512620), (2015, 10010096), (2480, 8133203), (3224, 6256310), (4030, 5005048), (6448, 3128155), (8060, 2502524), (16120, 1251262), (32240, 625631)]