81324152

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^3\times {\mathrm{661}}^1$

素因数の和:713

約数の個数: 64

約数和(自身を含む): 189067200

約数和(自身を除く): 107743048

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 169, 182, 338, 364, 661, 676, 728, 1183, 1322, 1352, 2197, 2366, 2644, 4394, 4627, 4732, 5288, 8593, 8788, 9254, 9464, 15379, 17186, 17576, 18508, 30758, 34372, 37016, 60151, 61516, 68744, 111709, 120302, 123032, 223418, 240604, 446836, 481208, 781963, 893672, 1452217, 1563926, 2904434, 3127852, 5808868, 6255704, 10165519, 11617736, 20331038, 40662076, 81324152]

約数ペア:

[(1, 81324152), (2, 40662076), (4, 20331038), (7, 11617736), (8, 10165519), (13, 6255704), (14, 5808868), (26, 3127852), (28, 2904434), (52, 1563926), (56, 1452217), (91, 893672), (104, 781963), (169, 481208), (182, 446836), (338, 240604), (364, 223418), (661, 123032), (676, 120302), (728, 111709), (1183, 68744), (1322, 61516), (1352, 60151), (2197, 37016), (2366, 34372), (2644, 30758), (4394, 18508), (4627, 17576), (4732, 17186), (5288, 15379), (8593, 9464), (8788, 9254)]