20879181505

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{1009}}^1$

素因数の和:1203

約数の個数: 96

約数和(自身を含む): 32206960800

約数和(自身を除く): 11327779295

約数列:

[1, 5, 7, 13, 35, 49, 65, 73, 89, 91, 245, 365, 445, 455, 511, 623, 637, 949, 1009, 1157, 2555, 3115, 3185, 3577, 4361, 4745, 5045, 5785, 6497, 6643, 7063, 8099, 13117, 17885, 21805, 32485, 33215, 35315, 40495, 45479, 46501, 49441, 56693, 65585, 73657, 84461, 89801, 91819, 227395, 232505, 247205, 283465, 318353, 368285, 422305, 449005, 459095, 515599, 591227, 628607, 642733, 957541, 1167413, 1591765, 2577995, 2956135, 3143035, 3213665, 3609193, 4138589, 4400249, 4787705, 5837065, 6555473, 6702787, 8171891, 18045965, 20692945, 22001245, 32777365, 33513935, 40859455, 45888311, 46919509, 57203237, 85221149, 229441555, 234597545, 286016185, 321218177, 426105745, 596548043, 1606090885, 2982740215, 4175836301, 20879181505]

約数ペア:

[(1, 20879181505), (5, 4175836301), (7, 2982740215), (13, 1606090885), (35, 596548043), (49, 426105745), (65, 321218177), (73, 286016185), (89, 234597545), (91, 229441555), (245, 85221149), (365, 57203237), (445, 46919509), (455, 45888311), (511, 40859455), (623, 33513935), (637, 32777365), (949, 22001245), (1009, 20692945), (1157, 18045965), (2555, 8171891), (3115, 6702787), (3185, 6555473), (3577, 5837065), (4361, 4787705), (4745, 4400249), (5045, 4138589), (5785, 3609193), (6497, 3213665), (6643, 3143035), (7063, 2956135), (8099, 2577995), (13117, 1591765), (17885, 1167413), (21805, 957541), (32485, 642733), (33215, 628607), (35315, 591227), (40495, 515599), (45479, 459095), (46501, 449005), (49441, 422305), (56693, 368285), (65585, 318353), (73657, 283465), (84461, 247205), (89801, 232505), (91819, 227395)]