78128640

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{3391}}^1$

素因数の和:3420

約数の個数: 120

約数和(自身を含む): 270661248

約数和(自身を除く): 192532608

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1536, 1920, 2304, 2560, 2880, 3391, 3840, 4608, 5760, 6782, 7680, 10173, 11520, 13564, 16955, 20346, 23040, 27128, 30519, 33910, 40692, 50865, 54256, 61038, 67820, 81384, 101730, 108512, 122076, 135640, 152595, 162768, 203460, 217024, 244152, 271280, 305190, 325536, 406920, 434048, 488304, 542560, 610380, 651072, 813840, 868096, 976608, 1085120, 1220760, 1302144, 1627680, 1736192, 1953216, 2170240, 2441520, 2604288, 3255360, 3906432, 4340480, 4883040, 5208576, 6510720, 7812864, 8680960, 9766080, 13021440, 15625728, 19532160, 26042880, 39064320, 78128640]

約数ペア:

[(1, 78128640), (2, 39064320), (3, 26042880), (4, 19532160), (5, 15625728), (6, 13021440), (8, 9766080), (9, 8680960), (10, 7812864), (12, 6510720), (15, 5208576), (16, 4883040), (18, 4340480), (20, 3906432), (24, 3255360), (30, 2604288), (32, 2441520), (36, 2170240), (40, 1953216), (45, 1736192), (48, 1627680), (60, 1302144), (64, 1220760), (72, 1085120), (80, 976608), (90, 868096), (96, 813840), (120, 651072), (128, 610380), (144, 542560), (160, 488304), (180, 434048), (192, 406920), (240, 325536), (256, 305190), (288, 271280), (320, 244152), (360, 217024), (384, 203460), (480, 162768), (512, 152595), (576, 135640), (640, 122076), (720, 108512), (768, 101730), (960, 81384), (1152, 67820), (1280, 61038), (1440, 54256), (1536, 50865), (1920, 40692), (2304, 33910), (2560, 30519), (2880, 27128), (3391, 23040), (3840, 20346), (4608, 16955), (5760, 13564), (6782, 11520), (7680, 10173)]