18380490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 46949760

約数和(自身を除く): 28569270

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 37, 58, 74, 87, 111, 145, 174, 185, 222, 290, 370, 435, 555, 571, 870, 1073, 1110, 1142, 1713, 2146, 2855, 3219, 3426, 5365, 5710, 6438, 8565, 10730, 16095, 16559, 17130, 21127, 32190, 33118, 42254, 49677, 63381, 82795, 99354, 105635, 126762, 165590, 211270, 248385, 316905, 496770, 612683, 633810, 1225366, 1838049, 3063415, 3676098, 6126830, 9190245, 18380490]

約数ペア:

[(1, 18380490), (2, 9190245), (3, 6126830), (5, 3676098), (6, 3063415), (10, 1838049), (15, 1225366), (29, 633810), (30, 612683), (37, 496770), (58, 316905), (74, 248385), (87, 211270), (111, 165590), (145, 126762), (174, 105635), (185, 99354), (222, 82795), (290, 63381), (370, 49677), (435, 42254), (555, 33118), (571, 32190), (870, 21127), (1073, 17130), (1110, 16559), (1142, 16095), (1713, 10730), (2146, 8565), (2855, 6438), (3219, 5710), (3426, 5365)]