20173949848

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{347}}^1\times {\mathrm{2339}}^1$

素因数の和:2944

約数の個数: 64

約数和(自身を含む): 41041728000

約数和(自身を除く): 20867778152

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 239, 347, 478, 694, 956, 1388, 1912, 2339, 2776, 3107, 4511, 4678, 6214, 9022, 9356, 12428, 18044, 18712, 24856, 30407, 36088, 60814, 82933, 121628, 165866, 243256, 331732, 559021, 663464, 811633, 1078129, 1118042, 1623266, 2156258, 2236084, 3246532, 4312516, 4472168, 6493064, 7267273, 8625032, 10551229, 14534546, 21102458, 29069092, 42204916, 58138184, 84409832, 193980287, 387960574, 775921148, 1551842296, 2521743731, 5043487462, 10086974924, 20173949848]

約数ペア:

[(1, 20173949848), (2, 10086974924), (4, 5043487462), (8, 2521743731), (13, 1551842296), (26, 775921148), (52, 387960574), (104, 193980287), (239, 84409832), (347, 58138184), (478, 42204916), (694, 29069092), (956, 21102458), (1388, 14534546), (1912, 10551229), (2339, 8625032), (2776, 7267273), (3107, 6493064), (4511, 4472168), (4678, 4312516), (6214, 3246532), (9022, 2236084), (9356, 2156258), (12428, 1623266), (18044, 1118042), (18712, 1078129), (24856, 811633), (30407, 663464), (36088, 559021), (60814, 331732), (82933, 243256), (121628, 165866)]