218995520

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:416

約数の個数: 112

約数和(自身を含む): 554736000

約数和(自身を除く): 335740480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 181, 190, 199, 304, 320, 362, 380, 398, 608, 724, 760, 796, 905, 995, 1216, 1448, 1520, 1592, 1810, 1990, 2896, 3040, 3184, 3439, 3620, 3781, 3980, 5792, 6080, 6368, 6878, 7240, 7562, 7960, 11584, 12736, 13756, 14480, 15124, 15920, 17195, 18905, 27512, 28960, 30248, 31840, 34390, 36019, 37810, 55024, 57920, 60496, 63680, 68780, 72038, 75620, 110048, 120992, 137560, 144076, 151240, 180095, 220096, 241984, 275120, 288152, 302480, 360190, 550240, 576304, 604960, 684361, 720380, 1100480, 1152608, 1209920, 1368722, 1440760, 2305216, 2737444, 2881520, 3421805, 5474888, 5763040, 6843610, 10949776, 11526080, 13687220, 21899552, 27374440, 43799104, 54748880, 109497760, 218995520]

約数ペア:

[(1, 218995520), (2, 109497760), (4, 54748880), (5, 43799104), (8, 27374440), (10, 21899552), (16, 13687220), (19, 11526080), (20, 10949776), (32, 6843610), (38, 5763040), (40, 5474888), (64, 3421805), (76, 2881520), (80, 2737444), (95, 2305216), (152, 1440760), (160, 1368722), (181, 1209920), (190, 1152608), (199, 1100480), (304, 720380), (320, 684361), (362, 604960), (380, 576304), (398, 550240), (608, 360190), (724, 302480), (760, 288152), (796, 275120), (905, 241984), (995, 220096), (1216, 180095), (1448, 151240), (1520, 144076), (1592, 137560), (1810, 120992), (1990, 110048), (2896, 75620), (3040, 72038), (3184, 68780), (3439, 63680), (3620, 60496), (3781, 57920), (3980, 55024), (5792, 37810), (6080, 36019), (6368, 34390), (6878, 31840), (7240, 30248), (7562, 28960), (7960, 27512), (11584, 18905), (12736, 17195), (13756, 15920), (14480, 15124)]