56808520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 131725440

約数和(自身を除く): 74916920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 83, 142, 166, 241, 284, 332, 355, 415, 482, 568, 664, 710, 830, 964, 1205, 1420, 1660, 1928, 2410, 2840, 3320, 4820, 5893, 9640, 11786, 17111, 20003, 23572, 29465, 34222, 40006, 47144, 58930, 68444, 80012, 85555, 100015, 117860, 136888, 160024, 171110, 200030, 235720, 342220, 400060, 684440, 800120, 1420213, 2840426, 5680852, 7101065, 11361704, 14202130, 28404260, 56808520]

約数ペア:

[(1, 56808520), (2, 28404260), (4, 14202130), (5, 11361704), (8, 7101065), (10, 5680852), (20, 2840426), (40, 1420213), (71, 800120), (83, 684440), (142, 400060), (166, 342220), (241, 235720), (284, 200030), (332, 171110), (355, 160024), (415, 136888), (482, 117860), (568, 100015), (664, 85555), (710, 80012), (830, 68444), (964, 58930), (1205, 47144), (1420, 40006), (1660, 34222), (1928, 29465), (2410, 23572), (2840, 20003), (3320, 17111), (4820, 11786), (5893, 9640)]