20970400

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2383}}^1$

素因数の和:2414

約数の個数: 72

約数和(自身を含む): 55871424

約数和(自身を除く): 34901024

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 160, 176, 200, 220, 275, 352, 400, 440, 550, 800, 880, 1100, 1760, 2200, 2383, 4400, 4766, 8800, 9532, 11915, 19064, 23830, 26213, 38128, 47660, 52426, 59575, 76256, 95320, 104852, 119150, 131065, 190640, 209704, 238300, 262130, 381280, 419408, 476600, 524260, 655325, 838816, 953200, 1048520, 1310650, 1906400, 2097040, 2621300, 4194080, 5242600, 10485200, 20970400]

約数ペア:

[(1, 20970400), (2, 10485200), (4, 5242600), (5, 4194080), (8, 2621300), (10, 2097040), (11, 1906400), (16, 1310650), (20, 1048520), (22, 953200), (25, 838816), (32, 655325), (40, 524260), (44, 476600), (50, 419408), (55, 381280), (80, 262130), (88, 238300), (100, 209704), (110, 190640), (160, 131065), (176, 119150), (200, 104852), (220, 95320), (275, 76256), (352, 59575), (400, 52426), (440, 47660), (550, 38128), (800, 26213), (880, 23830), (1100, 19064), (1760, 11915), (2200, 9532), (2383, 8800), (4400, 4766)]