20565993976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{10987}}^1$

素因数の和:11332

約数の個数: 64

約数和(自身を含む): 42721344000

約数和(自身を除く): 22155350024

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 239, 356, 478, 712, 956, 979, 1912, 1958, 2629, 3916, 5258, 7832, 10516, 10987, 21032, 21271, 21974, 42542, 43948, 85084, 87896, 120857, 170168, 233981, 241714, 467962, 483428, 935924, 966856, 977843, 1871848, 1955686, 2625893, 3911372, 5251786, 7822744, 10503572, 10756273, 21007144, 21512546, 28884823, 43025092, 57769646, 86050184, 115539292, 231078584, 233704477, 467408954, 934817908, 1869635816, 2570749247, 5141498494, 10282996988, 20565993976]

約数ペア:

[(1, 20565993976), (2, 10282996988), (4, 5141498494), (8, 2570749247), (11, 1869635816), (22, 934817908), (44, 467408954), (88, 233704477), (89, 231078584), (178, 115539292), (239, 86050184), (356, 57769646), (478, 43025092), (712, 28884823), (956, 21512546), (979, 21007144), (1912, 10756273), (1958, 10503572), (2629, 7822744), (3916, 5251786), (5258, 3911372), (7832, 2625893), (10516, 1955686), (10987, 1871848), (21032, 977843), (21271, 966856), (21974, 935924), (42542, 483428), (43948, 467962), (85084, 241714), (87896, 233981), (120857, 170168)]