21898480

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9439}}^1$

素因数の和:9481

約数の個数: 40

約数和(自身を含む): 52675200

約数和(自身を除く): 30776720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9439, 18878, 37756, 47195, 75512, 94390, 151024, 188780, 273731, 377560, 547462, 755120, 1094924, 1368655, 2189848, 2737310, 4379696, 5474620, 10949240, 21898480]

約数ペア:

[(1, 21898480), (2, 10949240), (4, 5474620), (5, 4379696), (8, 2737310), (10, 2189848), (16, 1368655), (20, 1094924), (29, 755120), (40, 547462), (58, 377560), (80, 273731), (116, 188780), (145, 151024), (232, 94390), (290, 75512), (464, 47195), (580, 37756), (1160, 18878), (2320, 9439)]