491906560

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:256

約数の個数: 160

約数和(自身を含む): 1272775680

約数和(自身を除く): 780869120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 89, 127, 128, 136, 160, 170, 178, 254, 256, 272, 320, 340, 356, 445, 508, 512, 544, 635, 640, 680, 712, 890, 1016, 1088, 1270, 1280, 1360, 1424, 1513, 1780, 2032, 2159, 2176, 2540, 2560, 2720, 2848, 3026, 3560, 4064, 4318, 4352, 5080, 5440, 5696, 6052, 7120, 7565, 8128, 8636, 8704, 10160, 10795, 10880, 11303, 11392, 12104, 14240, 15130, 16256, 17272, 20320, 21590, 21760, 22606, 22784, 24208, 28480, 30260, 32512, 34544, 40640, 43180, 43520, 45212, 45568, 48416, 56515, 56960, 60520, 65024, 69088, 81280, 86360, 90424, 96832, 113030, 113920, 121040, 138176, 162560, 172720, 180848, 192151, 193664, 226060, 227840, 242080, 276352, 325120, 345440, 361696, 384302, 387328, 452120, 484160, 552704, 690880, 723392, 768604, 774656, 904240, 960755, 968320, 1105408, 1381760, 1446784, 1537208, 1808480, 1921510, 1936640, 2763520, 2893568, 3074416, 3616960, 3843020, 3873280, 5527040, 5787136, 6148832, 7233920, 7686040, 12297664, 14467840, 15372080, 24595328, 28935680, 30744160, 49190656, 61488320, 98381312, 122976640, 245953280, 491906560]

約数ペア:

[(1, 491906560), (2, 245953280), (4, 122976640), (5, 98381312), (8, 61488320), (10, 49190656), (16, 30744160), (17, 28935680), (20, 24595328), (32, 15372080), (34, 14467840), (40, 12297664), (64, 7686040), (68, 7233920), (80, 6148832), (85, 5787136), (89, 5527040), (127, 3873280), (128, 3843020), (136, 3616960), (160, 3074416), (170, 2893568), (178, 2763520), (254, 1936640), (256, 1921510), (272, 1808480), (320, 1537208), (340, 1446784), (356, 1381760), (445, 1105408), (508, 968320), (512, 960755), (544, 904240), (635, 774656), (640, 768604), (680, 723392), (712, 690880), (890, 552704), (1016, 484160), (1088, 452120), (1270, 387328), (1280, 384302), (1360, 361696), (1424, 345440), (1513, 325120), (1780, 276352), (2032, 242080), (2159, 227840), (2176, 226060), (2540, 193664), (2560, 192151), (2720, 180848), (2848, 172720), (3026, 162560), (3560, 138176), (4064, 121040), (4318, 113920), (4352, 113030), (5080, 96832), (5440, 90424), (5696, 86360), (6052, 81280), (7120, 69088), (7565, 65024), (8128, 60520), (8636, 56960), (8704, 56515), (10160, 48416), (10795, 45568), (10880, 45212), (11303, 43520), (11392, 43180), (12104, 40640), (14240, 34544), (15130, 32512), (16256, 30260), (17272, 28480), (20320, 24208), (21590, 22784), (21760, 22606)]