20793388415

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{977}}^1$

素因数の和:1268

約数の個数: 64

約数和(自身を含む): 28107813888

約数和(自身を除く): 7314425473

約数列:

[1, 5, 17, 31, 41, 85, 155, 197, 205, 527, 697, 977, 985, 1271, 2635, 3349, 3485, 4885, 6107, 6355, 8077, 16609, 16745, 21607, 30287, 30535, 40057, 40385, 83045, 103819, 108035, 137309, 151435, 192469, 200285, 250387, 514879, 519095, 680969, 686545, 962345, 1241767, 1251935, 2574395, 3271973, 3404845, 4256579, 5966539, 6208835, 7891229, 16359865, 21110039, 21282895, 29832695, 39456145, 101431163, 105550195, 134150893, 244628099, 507155815, 670754465, 1223140495, 4158677683, 20793388415]

約数ペア:

[(1, 20793388415), (5, 4158677683), (17, 1223140495), (31, 670754465), (41, 507155815), (85, 244628099), (155, 134150893), (197, 105550195), (205, 101431163), (527, 39456145), (697, 29832695), (977, 21282895), (985, 21110039), (1271, 16359865), (2635, 7891229), (3349, 6208835), (3485, 5966539), (4885, 4256579), (6107, 3404845), (6355, 3271973), (8077, 2574395), (16609, 1251935), (16745, 1241767), (21607, 962345), (30287, 686545), (30535, 680969), (40057, 519095), (40385, 514879), (83045, 250387), (103819, 200285), (108035, 192469), (137309, 151435)]