20744412

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 53679024

約数和(自身を除く): 32934612

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 169, 193, 212, 318, 338, 386, 507, 579, 636, 676, 689, 772, 1014, 1158, 1378, 2028, 2067, 2316, 2509, 2756, 4134, 5018, 7527, 8268, 8957, 10036, 10229, 15054, 17914, 20458, 26871, 30108, 30687, 32617, 35828, 40916, 53742, 61374, 65234, 97851, 107484, 122748, 130468, 132977, 195702, 265954, 391404, 398931, 531908, 797862, 1595724, 1728701, 3457402, 5186103, 6914804, 10372206, 20744412]

約数ペア:

[(1, 20744412), (2, 10372206), (3, 6914804), (4, 5186103), (6, 3457402), (12, 1728701), (13, 1595724), (26, 797862), (39, 531908), (52, 398931), (53, 391404), (78, 265954), (106, 195702), (156, 132977), (159, 130468), (169, 122748), (193, 107484), (212, 97851), (318, 65234), (338, 61374), (386, 53742), (507, 40916), (579, 35828), (636, 32617), (676, 30687), (689, 30108), (772, 26871), (1014, 20458), (1158, 17914), (1378, 15054), (2028, 10229), (2067, 10036), (2316, 8957), (2509, 8268), (2756, 7527), (4134, 5018)]