159801280

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:318

約数の個数: 112

約数和(自身を含む): 399409920

約数和(自身を除く): 239608640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 89, 124, 155, 160, 178, 181, 248, 310, 320, 356, 362, 445, 496, 620, 712, 724, 890, 905, 992, 1240, 1424, 1448, 1780, 1810, 1984, 2480, 2759, 2848, 2896, 3560, 3620, 4960, 5518, 5611, 5696, 5792, 7120, 7240, 9920, 11036, 11222, 11584, 13795, 14240, 14480, 16109, 22072, 22444, 27590, 28055, 28480, 28960, 32218, 44144, 44888, 55180, 56110, 57920, 64436, 80545, 88288, 89776, 110360, 112220, 128872, 161090, 176576, 179552, 220720, 224440, 257744, 322180, 359104, 441440, 448880, 499379, 515488, 644360, 882880, 897760, 998758, 1030976, 1288720, 1795520, 1997516, 2496895, 2577440, 3995032, 4993790, 5154880, 7990064, 9987580, 15980128, 19975160, 31960256, 39950320, 79900640, 159801280]

約数ペア:

[(1, 159801280), (2, 79900640), (4, 39950320), (5, 31960256), (8, 19975160), (10, 15980128), (16, 9987580), (20, 7990064), (31, 5154880), (32, 4993790), (40, 3995032), (62, 2577440), (64, 2496895), (80, 1997516), (89, 1795520), (124, 1288720), (155, 1030976), (160, 998758), (178, 897760), (181, 882880), (248, 644360), (310, 515488), (320, 499379), (356, 448880), (362, 441440), (445, 359104), (496, 322180), (620, 257744), (712, 224440), (724, 220720), (890, 179552), (905, 176576), (992, 161090), (1240, 128872), (1424, 112220), (1448, 110360), (1780, 89776), (1810, 88288), (1984, 80545), (2480, 64436), (2759, 57920), (2848, 56110), (2896, 55180), (3560, 44888), (3620, 44144), (4960, 32218), (5518, 28960), (5611, 28480), (5696, 28055), (5792, 27590), (7120, 22444), (7240, 22072), (9920, 16109), (11036, 14480), (11222, 14240), (11584, 13795)]