28789280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13841}}^1$

素因数の和:13869

約数の個数: 48

約数和(自身を含む): 73251864

約数和(自身を除く): 44462584

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 13841, 27682, 55364, 69205, 110728, 138410, 179933, 221456, 276820, 359866, 442912, 553640, 719732, 899665, 1107280, 1439464, 1799330, 2214560, 2878928, 3598660, 5757856, 7197320, 14394640, 28789280]

約数ペア:

[(1, 28789280), (2, 14394640), (4, 7197320), (5, 5757856), (8, 3598660), (10, 2878928), (13, 2214560), (16, 1799330), (20, 1439464), (26, 1107280), (32, 899665), (40, 719732), (52, 553640), (65, 442912), (80, 359866), (104, 276820), (130, 221456), (160, 179933), (208, 138410), (260, 110728), (416, 69205), (520, 55364), (1040, 27682), (2080, 13841)]