638510080

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:272

約数の個数: 176

約数和(自身を含む): 1689904944

約数和(自身を除く): 1051394864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 53, 64, 65, 80, 104, 106, 128, 130, 160, 181, 208, 212, 256, 260, 265, 320, 362, 416, 424, 512, 520, 530, 640, 689, 724, 832, 848, 905, 1024, 1040, 1060, 1280, 1378, 1448, 1664, 1696, 1810, 2080, 2120, 2353, 2560, 2756, 2896, 3328, 3392, 3445, 3620, 4160, 4240, 4706, 5120, 5512, 5792, 6656, 6784, 6890, 7240, 8320, 8480, 9412, 9593, 11024, 11584, 11765, 13312, 13568, 13780, 14480, 16640, 16960, 18824, 19186, 22048, 23168, 23530, 27136, 27560, 28960, 33280, 33920, 37648, 38372, 44096, 46336, 47060, 47965, 54272, 55120, 57920, 66560, 67840, 75296, 76744, 88192, 92672, 94120, 95930, 110240, 115840, 124709, 135680, 150592, 153488, 176384, 185344, 188240, 191860, 220480, 231680, 249418, 271360, 301184, 306976, 352768, 376480, 383720, 440960, 463360, 498836, 602368, 613952, 623545, 705536, 752960, 767440, 881920, 926720, 997672, 1204736, 1227904, 1247090, 1505920, 1534880, 1763840, 1995344, 2409472, 2455808, 2494180, 3011840, 3069760, 3527680, 3990688, 4911616, 4988360, 6023680, 6139520, 7981376, 9823232, 9976720, 12047360, 12279040, 15962752, 19953440, 24558080, 31925504, 39906880, 49116160, 63851008, 79813760, 127702016, 159627520, 319255040, 638510080]

約数ペア:

[(1, 638510080), (2, 319255040), (4, 159627520), (5, 127702016), (8, 79813760), (10, 63851008), (13, 49116160), (16, 39906880), (20, 31925504), (26, 24558080), (32, 19953440), (40, 15962752), (52, 12279040), (53, 12047360), (64, 9976720), (65, 9823232), (80, 7981376), (104, 6139520), (106, 6023680), (128, 4988360), (130, 4911616), (160, 3990688), (181, 3527680), (208, 3069760), (212, 3011840), (256, 2494180), (260, 2455808), (265, 2409472), (320, 1995344), (362, 1763840), (416, 1534880), (424, 1505920), (512, 1247090), (520, 1227904), (530, 1204736), (640, 997672), (689, 926720), (724, 881920), (832, 767440), (848, 752960), (905, 705536), (1024, 623545), (1040, 613952), (1060, 602368), (1280, 498836), (1378, 463360), (1448, 440960), (1664, 383720), (1696, 376480), (1810, 352768), (2080, 306976), (2120, 301184), (2353, 271360), (2560, 249418), (2756, 231680), (2896, 220480), (3328, 191860), (3392, 188240), (3445, 185344), (3620, 176384), (4160, 153488), (4240, 150592), (4706, 135680), (5120, 124709), (5512, 115840), (5792, 110240), (6656, 95930), (6784, 94120), (6890, 92672), (7240, 88192), (8320, 76744), (8480, 75296), (9412, 67840), (9593, 66560), (11024, 57920), (11584, 55120), (11765, 54272), (13312, 47965), (13568, 47060), (13780, 46336), (14480, 44096), (16640, 38372), (16960, 37648), (18824, 33920), (19186, 33280), (22048, 28960), (23168, 27560), (23530, 27136)]