28405120

素因数分解:

$2^7\times 5^1\times {\mathrm{44383}}^1$

素因数の和:44402

約数の個数: 32

約数和(自身を含む): 67907520

約数和(自身を除く): 39502400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 44383, 88766, 177532, 221915, 355064, 443830, 710128, 887660, 1420256, 1775320, 2840512, 3550640, 5681024, 7101280, 14202560, 28405120]

約数ペア:

[(1, 28405120), (2, 14202560), (4, 7101280), (5, 5681024), (8, 3550640), (10, 2840512), (16, 1775320), (20, 1420256), (32, 887660), (40, 710128), (64, 443830), (80, 355064), (128, 221915), (160, 177532), (320, 88766), (640, 44383)]