28953860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{577}}^1$

素因数の和:792

約数の個数: 48

約数和(自身を含む): 65933616

約数和(自身を除く): 36979756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 193, 260, 386, 577, 772, 965, 1154, 1930, 2308, 2509, 2885, 3860, 5018, 5770, 7501, 10036, 11540, 12545, 15002, 25090, 30004, 37505, 50180, 75010, 111361, 150020, 222722, 445444, 556805, 1113610, 1447693, 2227220, 2895386, 5790772, 7238465, 14476930, 28953860]

約数ペア:

[(1, 28953860), (2, 14476930), (4, 7238465), (5, 5790772), (10, 2895386), (13, 2227220), (20, 1447693), (26, 1113610), (52, 556805), (65, 445444), (130, 222722), (193, 150020), (260, 111361), (386, 75010), (577, 50180), (772, 37505), (965, 30004), (1154, 25090), (1930, 15002), (2308, 12545), (2509, 11540), (2885, 10036), (3860, 7501), (5018, 5770)]