20176918216

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1458713}}^1$

素因数の和:1458758

約数の個数: 64

約数和(自身を含む): 49012790400

約数和(自身を除く): 28835872184

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 76, 91, 104, 133, 152, 182, 247, 266, 364, 494, 532, 728, 988, 1064, 1729, 1976, 3458, 6916, 13832, 1458713, 2917426, 5834852, 10210991, 11669704, 18963269, 20421982, 27715547, 37926538, 40843964, 55431094, 75853076, 81687928, 110862188, 132742883, 151706152, 194008829, 221724376, 265485766, 360302111, 388017658, 530971532, 720604222, 776035316, 1061943064, 1441208444, 1552070632, 2522114777, 2882416888, 5044229554, 10088459108, 20176918216]

約数ペア:

[(1, 20176918216), (2, 10088459108), (4, 5044229554), (7, 2882416888), (8, 2522114777), (13, 1552070632), (14, 1441208444), (19, 1061943064), (26, 776035316), (28, 720604222), (38, 530971532), (52, 388017658), (56, 360302111), (76, 265485766), (91, 221724376), (104, 194008829), (133, 151706152), (152, 132742883), (182, 110862188), (247, 81687928), (266, 75853076), (364, 55431094), (494, 40843964), (532, 37926538), (728, 27715547), (988, 20421982), (1064, 18963269), (1729, 11669704), (1976, 10210991), (3458, 5834852), (6916, 2917426), (13832, 1458713)]