639371520

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{55501}}^1$

素因数の和:55528

約数の個数: 108

約数和(自身を含む): 2212198716

約数和(自身を除く): 1572827196

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, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1920, 2304, 2880, 3840, 5760, 11520, 55501, 111002, 166503, 222004, 277505, 333006, 444008, 499509, 555010, 666012, 832515, 888016, 999018, 1110020, 1332024, 1665030, 1776032, 1998036, 2220040, 2497545, 2664048, 3330060, 3552064, 3996072, 4440080, 4995090, 5328096, 6660120, 7104128, 7992144, 8880160, 9990180, 10656192, 13320240, 14208256, 15984288, 17760320, 19980360, 21312384, 26640480, 31968576, 35520640, 39960720, 42624768, 53280960, 63937152, 71041280, 79921440, 106561920, 127874304, 159842880, 213123840, 319685760, 639371520]

約数ペア:

[(1, 639371520), (2, 319685760), (3, 213123840), (4, 159842880), (5, 127874304), (6, 106561920), (8, 79921440), (9, 71041280), (10, 63937152), (12, 53280960), (15, 42624768), (16, 39960720), (18, 35520640), (20, 31968576), (24, 26640480), (30, 21312384), (32, 19980360), (36, 17760320), (40, 15984288), (45, 14208256), (48, 13320240), (60, 10656192), (64, 9990180), (72, 8880160), (80, 7992144), (90, 7104128), (96, 6660120), (120, 5328096), (128, 4995090), (144, 4440080), (160, 3996072), (180, 3552064), (192, 3330060), (240, 2664048), (256, 2497545), (288, 2220040), (320, 1998036), (360, 1776032), (384, 1665030), (480, 1332024), (576, 1110020), (640, 999018), (720, 888016), (768, 832515), (960, 666012), (1152, 555010), (1280, 499509), (1440, 444008), (1920, 333006), (2304, 277505), (2880, 222004), (3840, 166503), (5760, 111002), (11520, 55501)]