81587108564

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{839}}^1\times {\mathrm{1483}}^1$

素因数の和:2449

約数の個数: 72

約数和(自身を含む): 156490649280

約数和(自身を除く): 74903540716

約数列:

[1, 2, 4, 13, 26, 52, 97, 169, 194, 338, 388, 676, 839, 1261, 1483, 1678, 2522, 2966, 3356, 5044, 5932, 10907, 16393, 19279, 21814, 32786, 38558, 43628, 65572, 77116, 81383, 141791, 143851, 162766, 250627, 283582, 287702, 325532, 501254, 567164, 575404, 1002508, 1057979, 1244237, 1870063, 2115958, 2488474, 3740126, 4231916, 4976948, 7480252, 13753727, 16175081, 24310819, 27507454, 32350162, 48621638, 55014908, 64700324, 97243276, 120690989, 210276053, 241381978, 420552106, 482763956, 841104212, 1568982857, 3137965714, 6275931428, 20396777141, 40793554282, 81587108564]

約数ペア:

[(1, 81587108564), (2, 40793554282), (4, 20396777141), (13, 6275931428), (26, 3137965714), (52, 1568982857), (97, 841104212), (169, 482763956), (194, 420552106), (338, 241381978), (388, 210276053), (676, 120690989), (839, 97243276), (1261, 64700324), (1483, 55014908), (1678, 48621638), (2522, 32350162), (2966, 27507454), (3356, 24310819), (5044, 16175081), (5932, 13753727), (10907, 7480252), (16393, 4976948), (19279, 4231916), (21814, 3740126), (32786, 2488474), (38558, 2115958), (43628, 1870063), (65572, 1244237), (77116, 1057979), (81383, 1002508), (141791, 575404), (143851, 567164), (162766, 501254), (250627, 325532), (283582, 287702)]