20488236470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1\times {\mathrm{17891}}^1$

素因数の和:18317

約数の個数: 64

約数和(自身を含む): 41552953344

約数和(自身を除く): 21064716874

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 383, 598, 766, 1495, 1915, 2990, 3830, 4979, 8809, 9958, 17618, 17891, 24895, 35782, 44045, 49790, 88090, 89455, 114517, 178910, 229034, 232583, 411493, 465166, 572585, 822986, 1145170, 1162915, 2057465, 2325830, 4114930, 5349409, 6852253, 10698818, 13704506, 26747045, 34261265, 53494090, 68522530, 89079289, 157601819, 178158578, 315203638, 445396445, 788009095, 890792890, 1576018190, 2048823647, 4097647294, 10244118235, 20488236470]

約数ペア:

[(1, 20488236470), (2, 10244118235), (5, 4097647294), (10, 2048823647), (13, 1576018190), (23, 890792890), (26, 788009095), (46, 445396445), (65, 315203638), (115, 178158578), (130, 157601819), (230, 89079289), (299, 68522530), (383, 53494090), (598, 34261265), (766, 26747045), (1495, 13704506), (1915, 10698818), (2990, 6852253), (3830, 5349409), (4979, 4114930), (8809, 2325830), (9958, 2057465), (17618, 1162915), (17891, 1145170), (24895, 822986), (35782, 572585), (44045, 465166), (49790, 411493), (88090, 232583), (89455, 229034), (114517, 178910)]