180221440

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:232

約数の個数: 160

約数和(自身を含む): 503807040

約数和(自身を除く): 323585600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 112, 113, 128, 140, 160, 178, 224, 226, 256, 280, 320, 356, 445, 448, 452, 512, 560, 565, 623, 640, 712, 791, 890, 896, 904, 1120, 1130, 1246, 1280, 1424, 1582, 1780, 1792, 1808, 2240, 2260, 2492, 2560, 2848, 3115, 3164, 3560, 3584, 3616, 3955, 4480, 4520, 4984, 5696, 6230, 6328, 7120, 7232, 7910, 8960, 9040, 9968, 10057, 11392, 12460, 12656, 14240, 14464, 15820, 17920, 18080, 19936, 20114, 22784, 24920, 25312, 28480, 28928, 31640, 36160, 39872, 40228, 45568, 49840, 50285, 50624, 56960, 57856, 63280, 70399, 72320, 79744, 80456, 99680, 100570, 101248, 113920, 126560, 140798, 144640, 159488, 160912, 199360, 201140, 202496, 227840, 253120, 281596, 289280, 318976, 321824, 351995, 398720, 402280, 404992, 506240, 563192, 643648, 703990, 797440, 804560, 1012480, 1126384, 1287296, 1407980, 1594880, 1609120, 2024960, 2252768, 2574592, 2815960, 3218240, 4505536, 5149184, 5631920, 6436480, 9011072, 11263840, 12872960, 18022144, 22527680, 25745920, 36044288, 45055360, 90110720, 180221440]

約数ペア:

[(1, 180221440), (2, 90110720), (4, 45055360), (5, 36044288), (7, 25745920), (8, 22527680), (10, 18022144), (14, 12872960), (16, 11263840), (20, 9011072), (28, 6436480), (32, 5631920), (35, 5149184), (40, 4505536), (56, 3218240), (64, 2815960), (70, 2574592), (80, 2252768), (89, 2024960), (112, 1609120), (113, 1594880), (128, 1407980), (140, 1287296), (160, 1126384), (178, 1012480), (224, 804560), (226, 797440), (256, 703990), (280, 643648), (320, 563192), (356, 506240), (445, 404992), (448, 402280), (452, 398720), (512, 351995), (560, 321824), (565, 318976), (623, 289280), (640, 281596), (712, 253120), (791, 227840), (890, 202496), (896, 201140), (904, 199360), (1120, 160912), (1130, 159488), (1246, 144640), (1280, 140798), (1424, 126560), (1582, 113920), (1780, 101248), (1792, 100570), (1808, 99680), (2240, 80456), (2260, 79744), (2492, 72320), (2560, 70399), (2848, 63280), (3115, 57856), (3164, 56960), (3560, 50624), (3584, 50285), (3616, 49840), (3955, 45568), (4480, 40228), (4520, 39872), (4984, 36160), (5696, 31640), (6230, 28928), (6328, 28480), (7120, 25312), (7232, 24920), (7910, 22784), (8960, 20114), (9040, 19936), (9968, 18080), (10057, 17920), (11392, 15820), (12460, 14464), (12656, 14240)]