18637580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{739}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 42641760

約数和(自身を除く): 24004180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 739, 970, 1261, 1478, 1940, 2522, 2956, 3695, 5044, 6305, 7390, 9607, 12610, 14780, 19214, 25220, 38428, 48035, 71683, 96070, 143366, 192140, 286732, 358415, 716830, 931879, 1433660, 1863758, 3727516, 4659395, 9318790, 18637580]

約数ペア:

[(1, 18637580), (2, 9318790), (4, 4659395), (5, 3727516), (10, 1863758), (13, 1433660), (20, 931879), (26, 716830), (52, 358415), (65, 286732), (97, 192140), (130, 143366), (194, 96070), (260, 71683), (388, 48035), (485, 38428), (739, 25220), (970, 19214), (1261, 14780), (1478, 12610), (1940, 9607), (2522, 7390), (2956, 6305), (3695, 5044)]