20037187976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{461}}^1\times {\mathrm{2309}}^1$

素因数の和:2970

約数の個数: 64

約数和(自身を含む): 40789148400

約数和(自身を除く): 20751960424

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 181, 362, 461, 724, 922, 1448, 1844, 2309, 2353, 3688, 4618, 4706, 5993, 9236, 9412, 11986, 18472, 18824, 23972, 30017, 47944, 60034, 83441, 120068, 166882, 240136, 333764, 417929, 667528, 835858, 1064449, 1084733, 1671716, 2128898, 2169466, 3343432, 4257796, 4338932, 5433077, 8515592, 8677864, 10866154, 13837837, 21732308, 27675674, 43464616, 55351348, 110702696, 192665269, 385330538, 770661076, 1541322152, 2504648497, 5009296994, 10018593988, 20037187976]

約数ペア:

[(1, 20037187976), (2, 10018593988), (4, 5009296994), (8, 2504648497), (13, 1541322152), (26, 770661076), (52, 385330538), (104, 192665269), (181, 110702696), (362, 55351348), (461, 43464616), (724, 27675674), (922, 21732308), (1448, 13837837), (1844, 10866154), (2309, 8677864), (2353, 8515592), (3688, 5433077), (4618, 4338932), (4706, 4257796), (5993, 3343432), (9236, 2169466), (9412, 2128898), (11986, 1671716), (18472, 1084733), (18824, 1064449), (23972, 835858), (30017, 667528), (47944, 417929), (60034, 333764), (83441, 240136), (120068, 166882)]