20265400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5333}}^1$

素因数の和:5368

約数の個数: 48

約数和(自身を含む): 49606200

約数和(自身を除く): 29340800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5333, 10666, 21332, 26665, 42664, 53330, 101327, 106660, 133325, 202654, 213320, 266650, 405308, 506635, 533300, 810616, 1013270, 1066600, 2026540, 2533175, 4053080, 5066350, 10132700, 20265400]

約数ペア:

[(1, 20265400), (2, 10132700), (4, 5066350), (5, 4053080), (8, 2533175), (10, 2026540), (19, 1066600), (20, 1013270), (25, 810616), (38, 533300), (40, 506635), (50, 405308), (76, 266650), (95, 213320), (100, 202654), (152, 133325), (190, 106660), (200, 101327), (380, 53330), (475, 42664), (760, 26665), (950, 21332), (1900, 10666), (3800, 5333)]