28416440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54647}}^1$

素因数の和:54671

約数の個数: 32

約数和(自身を含む): 68856480

約数和(自身を除く): 40440040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54647, 109294, 218588, 273235, 437176, 546470, 710411, 1092940, 1420822, 2185880, 2841644, 3552055, 5683288, 7104110, 14208220, 28416440]

約数ペア:

[(1, 28416440), (2, 14208220), (4, 7104110), (5, 5683288), (8, 3552055), (10, 2841644), (13, 2185880), (20, 1420822), (26, 1092940), (40, 710411), (52, 546470), (65, 437176), (104, 273235), (130, 218588), (260, 109294), (520, 54647)]