204401920

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:228

約数の個数: 144

約数和(自身を含む): 524506752

約数和(自身を除く): 320104832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 53, 64, 80, 92, 106, 115, 128, 131, 160, 184, 212, 230, 256, 262, 265, 320, 368, 424, 460, 524, 530, 640, 655, 736, 848, 920, 1048, 1060, 1219, 1280, 1310, 1472, 1696, 1840, 2096, 2120, 2438, 2620, 2944, 3013, 3392, 3680, 4192, 4240, 4876, 5240, 5888, 6026, 6095, 6784, 6943, 7360, 8384, 8480, 9752, 10480, 12052, 12190, 13568, 13886, 14720, 15065, 16768, 16960, 19504, 20960, 24104, 24380, 27772, 29440, 30130, 33536, 33920, 34715, 39008, 41920, 48208, 48760, 55544, 60260, 67840, 69430, 78016, 83840, 96416, 97520, 111088, 120520, 138860, 156032, 159689, 167680, 192832, 195040, 222176, 241040, 277720, 312064, 319378, 385664, 390080, 444352, 482080, 555440, 638756, 771328, 780160, 798445, 888704, 964160, 1110880, 1277512, 1560320, 1596890, 1777408, 1928320, 2221760, 2555024, 3193780, 3856640, 4443520, 5110048, 6387560, 8887040, 10220096, 12775120, 20440192, 25550240, 40880384, 51100480, 102200960, 204401920]

約数ペア:

[(1, 204401920), (2, 102200960), (4, 51100480), (5, 40880384), (8, 25550240), (10, 20440192), (16, 12775120), (20, 10220096), (23, 8887040), (32, 6387560), (40, 5110048), (46, 4443520), (53, 3856640), (64, 3193780), (80, 2555024), (92, 2221760), (106, 1928320), (115, 1777408), (128, 1596890), (131, 1560320), (160, 1277512), (184, 1110880), (212, 964160), (230, 888704), (256, 798445), (262, 780160), (265, 771328), (320, 638756), (368, 555440), (424, 482080), (460, 444352), (524, 390080), (530, 385664), (640, 319378), (655, 312064), (736, 277720), (848, 241040), (920, 222176), (1048, 195040), (1060, 192832), (1219, 167680), (1280, 159689), (1310, 156032), (1472, 138860), (1696, 120520), (1840, 111088), (2096, 97520), (2120, 96416), (2438, 83840), (2620, 78016), (2944, 69430), (3013, 67840), (3392, 60260), (3680, 55544), (4192, 48760), (4240, 48208), (4876, 41920), (5240, 39008), (5888, 34715), (6026, 33920), (6095, 33536), (6784, 30130), (6943, 29440), (7360, 27772), (8384, 24380), (8480, 24104), (9752, 20960), (10480, 19504), (12052, 16960), (12190, 16768), (13568, 15065), (13886, 14720)]