64734020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{811}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 147056448

約数和(自身を除く): 82322428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307, 614, 811, 1228, 1535, 1622, 3070, 3244, 3991, 4055, 6140, 7982, 8110, 10543, 15964, 16220, 19955, 21086, 39910, 42172, 52715, 79820, 105430, 210860, 248977, 497954, 995908, 1244885, 2489770, 3236701, 4979540, 6473402, 12946804, 16183505, 32367010, 64734020]

約数ペア:

[(1, 64734020), (2, 32367010), (4, 16183505), (5, 12946804), (10, 6473402), (13, 4979540), (20, 3236701), (26, 2489770), (52, 1244885), (65, 995908), (130, 497954), (260, 248977), (307, 210860), (614, 105430), (811, 79820), (1228, 52715), (1535, 42172), (1622, 39910), (3070, 21086), (3244, 19955), (3991, 16220), (4055, 15964), (6140, 10543), (7982, 8110)]