19399266400

素因数分解:

$2^5\times 5^2\times {\mathrm{1213}}^1\times {\mathrm{19991}}^1$

素因数の和:21224

約数の個数: 72

約数和(自身を含む): 47399872464

約数和(自身を除く): 28000606064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 1213, 2426, 4852, 6065, 9704, 12130, 19408, 19991, 24260, 30325, 38816, 39982, 48520, 60650, 79964, 97040, 99955, 121300, 159928, 194080, 199910, 242600, 319856, 399820, 485200, 499775, 639712, 799640, 970400, 999550, 1599280, 1999100, 3198560, 3998200, 7996400, 15992800, 24249083, 48498166, 96996332, 121245415, 193992664, 242490830, 387985328, 484981660, 606227075, 775970656, 969963320, 1212454150, 1939926640, 2424908300, 3879853280, 4849816600, 9699633200, 19399266400]

約数ペア:

[(1, 19399266400), (2, 9699633200), (4, 4849816600), (5, 3879853280), (8, 2424908300), (10, 1939926640), (16, 1212454150), (20, 969963320), (25, 775970656), (32, 606227075), (40, 484981660), (50, 387985328), (80, 242490830), (100, 193992664), (160, 121245415), (200, 96996332), (400, 48498166), (800, 24249083), (1213, 15992800), (2426, 7996400), (4852, 3998200), (6065, 3198560), (9704, 1999100), (12130, 1599280), (19408, 999550), (19991, 970400), (24260, 799640), (30325, 639712), (38816, 499775), (39982, 485200), (48520, 399820), (60650, 319856), (79964, 242600), (97040, 199910), (99955, 194080), (121300, 159928)]