18961920

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{823}}^1$

素因数の和:852

約数の個数: 120

約数和(自身を含む): 65750256

約数和(自身を除く): 46788336

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, 823, 960, 1152, 1280, 1440, 1536, 1646, 1920, 2304, 2469, 2560, 2880, 3292, 3840, 4115, 4608, 4938, 5760, 6584, 7407, 7680, 8230, 9876, 11520, 12345, 13168, 14814, 16460, 19752, 23040, 24690, 26336, 29628, 32920, 37035, 39504, 49380, 52672, 59256, 65840, 74070, 79008, 98760, 105344, 118512, 131680, 148140, 158016, 197520, 210688, 237024, 263360, 296280, 316032, 395040, 421376, 474048, 526720, 592560, 632064, 790080, 948096, 1053440, 1185120, 1264128, 1580160, 1896192, 2106880, 2370240, 3160320, 3792384, 4740480, 6320640, 9480960, 18961920]

約数ペア:

[(1, 18961920), (2, 9480960), (3, 6320640), (4, 4740480), (5, 3792384), (6, 3160320), (8, 2370240), (9, 2106880), (10, 1896192), (12, 1580160), (15, 1264128), (16, 1185120), (18, 1053440), (20, 948096), (24, 790080), (30, 632064), (32, 592560), (36, 526720), (40, 474048), (45, 421376), (48, 395040), (60, 316032), (64, 296280), (72, 263360), (80, 237024), (90, 210688), (96, 197520), (120, 158016), (128, 148140), (144, 131680), (160, 118512), (180, 105344), (192, 98760), (240, 79008), (256, 74070), (288, 65840), (320, 59256), (360, 52672), (384, 49380), (480, 39504), (512, 37035), (576, 32920), (640, 29628), (720, 26336), (768, 24690), (823, 23040), (960, 19752), (1152, 16460), (1280, 14814), (1440, 13168), (1536, 12345), (1646, 11520), (1920, 9876), (2304, 8230), (2469, 7680), (2560, 7407), (2880, 6584), (3292, 5760), (3840, 4938), (4115, 4608)]