20218373812

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{39199}}^1$

素因数の和:39345

約数の個数: 72

約数和(自身を含む): 44189376000

約数和(自身を除く): 23971002188

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 109, 169, 182, 218, 338, 364, 436, 676, 763, 1183, 1417, 1526, 2366, 2834, 3052, 4732, 5668, 9919, 18421, 19838, 36842, 39199, 39676, 73684, 78398, 128947, 156796, 257894, 274393, 509587, 515788, 548786, 1019174, 1097572, 2038348, 3567109, 4272691, 6624631, 7134218, 8545382, 13249262, 14268436, 17090764, 26498524, 29908837, 46372417, 55544983, 59817674, 92744834, 111089966, 119635348, 185489668, 222179932, 388814881, 722084779, 777629762, 1444169558, 1555259524, 2888339116, 5054593453, 10109186906, 20218373812]

約数ペア:

[(1, 20218373812), (2, 10109186906), (4, 5054593453), (7, 2888339116), (13, 1555259524), (14, 1444169558), (26, 777629762), (28, 722084779), (52, 388814881), (91, 222179932), (109, 185489668), (169, 119635348), (182, 111089966), (218, 92744834), (338, 59817674), (364, 55544983), (436, 46372417), (676, 29908837), (763, 26498524), (1183, 17090764), (1417, 14268436), (1526, 13249262), (2366, 8545382), (2834, 7134218), (3052, 6624631), (4732, 4272691), (5668, 3567109), (9919, 2038348), (18421, 1097572), (19838, 1019174), (36842, 548786), (39199, 515788), (39676, 509587), (73684, 274393), (78398, 257894), (128947, 156796)]