28328560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27239}}^1$

素因数の和:27265

約数の個数: 40

約数和(自身を含む): 70932960

約数和(自身を除く): 42604400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27239, 54478, 108956, 136195, 217912, 272390, 354107, 435824, 544780, 708214, 1089560, 1416428, 1770535, 2179120, 2832856, 3541070, 5665712, 7082140, 14164280, 28328560]

約数ペア:

[(1, 28328560), (2, 14164280), (4, 7082140), (5, 5665712), (8, 3541070), (10, 2832856), (13, 2179120), (16, 1770535), (20, 1416428), (26, 1089560), (40, 708214), (52, 544780), (65, 435824), (80, 354107), (104, 272390), (130, 217912), (208, 136195), (260, 108956), (520, 54478), (1040, 27239)]