81127680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:632

約数の個数: 144

約数和(自身を含む): 266570304

約数和(自身を除く): 185442624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 128, 148, 160, 185, 192, 222, 240, 256, 296, 320, 370, 384, 444, 480, 555, 571, 592, 640, 740, 768, 888, 960, 1110, 1142, 1184, 1280, 1480, 1713, 1776, 1920, 2220, 2284, 2368, 2855, 2960, 3426, 3552, 3840, 4440, 4568, 4736, 5710, 5920, 6852, 7104, 8565, 8880, 9136, 9472, 11420, 11840, 13704, 14208, 17130, 17760, 18272, 21127, 22840, 23680, 27408, 28416, 34260, 35520, 36544, 42254, 45680, 47360, 54816, 63381, 68520, 71040, 73088, 84508, 91360, 105635, 109632, 126762, 137040, 142080, 146176, 169016, 182720, 211270, 219264, 253524, 274080, 316905, 338032, 365440, 422540, 438528, 507048, 548160, 633810, 676064, 730880, 845080, 1014096, 1096320, 1267620, 1352128, 1690160, 2028192, 2192640, 2535240, 2704256, 3380320, 4056384, 5070480, 5408512, 6760640, 8112768, 10140960, 13521280, 16225536, 20281920, 27042560, 40563840, 81127680]

約数ペア:

[(1, 81127680), (2, 40563840), (3, 27042560), (4, 20281920), (5, 16225536), (6, 13521280), (8, 10140960), (10, 8112768), (12, 6760640), (15, 5408512), (16, 5070480), (20, 4056384), (24, 3380320), (30, 2704256), (32, 2535240), (37, 2192640), (40, 2028192), (48, 1690160), (60, 1352128), (64, 1267620), (74, 1096320), (80, 1014096), (96, 845080), (111, 730880), (120, 676064), (128, 633810), (148, 548160), (160, 507048), (185, 438528), (192, 422540), (222, 365440), (240, 338032), (256, 316905), (296, 274080), (320, 253524), (370, 219264), (384, 211270), (444, 182720), (480, 169016), (555, 146176), (571, 142080), (592, 137040), (640, 126762), (740, 109632), (768, 105635), (888, 91360), (960, 84508), (1110, 73088), (1142, 71040), (1184, 68520), (1280, 63381), (1480, 54816), (1713, 47360), (1776, 45680), (1920, 42254), (2220, 36544), (2284, 35520), (2368, 34260), (2855, 28416), (2960, 27408), (3426, 23680), (3552, 22840), (3840, 21127), (4440, 18272), (4568, 17760), (4736, 17130), (5710, 14208), (5920, 13704), (6852, 11840), (7104, 11420), (8565, 9472), (8880, 9136)]