161082880

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:220

約数の個数: 160

約数和(自身を含む): 450774720

約数和(自身を除く): 289691840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 101, 112, 128, 140, 160, 178, 202, 224, 256, 280, 320, 356, 404, 445, 448, 505, 512, 560, 623, 640, 707, 712, 808, 890, 896, 1010, 1120, 1246, 1280, 1414, 1424, 1616, 1780, 1792, 2020, 2240, 2492, 2560, 2828, 2848, 3115, 3232, 3535, 3560, 3584, 4040, 4480, 4984, 5656, 5696, 6230, 6464, 7070, 7120, 8080, 8960, 8989, 9968, 11312, 11392, 12460, 12928, 14140, 14240, 16160, 17920, 17978, 19936, 22624, 22784, 24920, 25856, 28280, 28480, 32320, 35956, 39872, 44945, 45248, 45568, 49840, 51712, 56560, 56960, 62923, 64640, 71912, 79744, 89890, 90496, 99680, 113120, 113920, 125846, 129280, 143824, 159488, 179780, 180992, 199360, 226240, 227840, 251692, 258560, 287648, 314615, 318976, 359560, 361984, 398720, 452480, 503384, 575296, 629230, 719120, 797440, 904960, 1006768, 1150592, 1258460, 1438240, 1594880, 1809920, 2013536, 2301184, 2516920, 2876480, 4027072, 4602368, 5033840, 5752960, 8054144, 10067680, 11505920, 16108288, 20135360, 23011840, 32216576, 40270720, 80541440, 161082880]

約数ペア:

[(1, 161082880), (2, 80541440), (4, 40270720), (5, 32216576), (7, 23011840), (8, 20135360), (10, 16108288), (14, 11505920), (16, 10067680), (20, 8054144), (28, 5752960), (32, 5033840), (35, 4602368), (40, 4027072), (56, 2876480), (64, 2516920), (70, 2301184), (80, 2013536), (89, 1809920), (101, 1594880), (112, 1438240), (128, 1258460), (140, 1150592), (160, 1006768), (178, 904960), (202, 797440), (224, 719120), (256, 629230), (280, 575296), (320, 503384), (356, 452480), (404, 398720), (445, 361984), (448, 359560), (505, 318976), (512, 314615), (560, 287648), (623, 258560), (640, 251692), (707, 227840), (712, 226240), (808, 199360), (890, 180992), (896, 179780), (1010, 159488), (1120, 143824), (1246, 129280), (1280, 125846), (1414, 113920), (1424, 113120), (1616, 99680), (1780, 90496), (1792, 89890), (2020, 79744), (2240, 71912), (2492, 64640), (2560, 62923), (2828, 56960), (2848, 56560), (3115, 51712), (3232, 49840), (3535, 45568), (3560, 45248), (3584, 44945), (4040, 39872), (4480, 35956), (4984, 32320), (5656, 28480), (5696, 28280), (6230, 25856), (6464, 24920), (7070, 22784), (7120, 22624), (8080, 19936), (8960, 17978), (8989, 17920), (9968, 16160), (11312, 14240), (11392, 14140), (12460, 12928)]