20970293890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{390581}}^1$

素因数の和:390667

約数の個数: 64

約数和(自身を含む): 47244798720

約数和(自身を除く): 26274504830

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 59, 65, 70, 91, 118, 130, 182, 295, 413, 455, 590, 767, 826, 910, 1534, 2065, 3835, 4130, 5369, 7670, 10738, 26845, 53690, 390581, 781162, 1952905, 2734067, 3905810, 5077553, 5468134, 10155106, 13670335, 23044279, 25387765, 27340670, 35542871, 46088558, 50775530, 71085742, 115221395, 161309953, 177714355, 230442790, 299575627, 322619906, 355428710, 599151254, 806549765, 1497878135, 1613099530, 2097029389, 2995756270, 4194058778, 10485146945, 20970293890]

約数ペア:

[(1, 20970293890), (2, 10485146945), (5, 4194058778), (7, 2995756270), (10, 2097029389), (13, 1613099530), (14, 1497878135), (26, 806549765), (35, 599151254), (59, 355428710), (65, 322619906), (70, 299575627), (91, 230442790), (118, 177714355), (130, 161309953), (182, 115221395), (295, 71085742), (413, 50775530), (455, 46088558), (590, 35542871), (767, 27340670), (826, 25387765), (910, 23044279), (1534, 13670335), (2065, 10155106), (3835, 5468134), (4130, 5077553), (5369, 3905810), (7670, 2734067), (10738, 1952905), (26845, 781162), (53690, 390581)]