289361920

素因数分解:

$2^{12}\times 5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:299

約数の個数: 104

約数和(自身を含む): 707702400

約数和(自身を除く): 418340480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 199, 256, 284, 320, 355, 398, 512, 568, 640, 710, 796, 995, 1024, 1136, 1280, 1420, 1592, 1990, 2048, 2272, 2560, 2840, 3184, 3980, 4096, 4544, 5120, 5680, 6368, 7960, 9088, 10240, 11360, 12736, 14129, 15920, 18176, 20480, 22720, 25472, 28258, 31840, 36352, 45440, 50944, 56516, 63680, 70645, 72704, 90880, 101888, 113032, 127360, 141290, 145408, 181760, 203776, 226064, 254720, 282580, 290816, 363520, 407552, 452128, 509440, 565160, 727040, 815104, 904256, 1018880, 1130320, 1454080, 1808512, 2037760, 2260640, 3617024, 4075520, 4521280, 7234048, 9042560, 14468096, 18085120, 28936192, 36170240, 57872384, 72340480, 144680960, 289361920]

約数ペア:

[(1, 289361920), (2, 144680960), (4, 72340480), (5, 57872384), (8, 36170240), (10, 28936192), (16, 18085120), (20, 14468096), (32, 9042560), (40, 7234048), (64, 4521280), (71, 4075520), (80, 3617024), (128, 2260640), (142, 2037760), (160, 1808512), (199, 1454080), (256, 1130320), (284, 1018880), (320, 904256), (355, 815104), (398, 727040), (512, 565160), (568, 509440), (640, 452128), (710, 407552), (796, 363520), (995, 290816), (1024, 282580), (1136, 254720), (1280, 226064), (1420, 203776), (1592, 181760), (1990, 145408), (2048, 141290), (2272, 127360), (2560, 113032), (2840, 101888), (3184, 90880), (3980, 72704), (4096, 70645), (4544, 63680), (5120, 56516), (5680, 50944), (6368, 45440), (7960, 36352), (9088, 31840), (10240, 28258), (11360, 25472), (12736, 22720), (14129, 20480), (15920, 18176)]