81830060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{641}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 185728032

約数和(自身を除く): 103897972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 491, 641, 982, 1282, 1964, 2455, 2564, 3205, 4910, 6383, 6410, 8333, 9820, 12766, 12820, 16666, 25532, 31915, 33332, 41665, 63830, 83330, 127660, 166660, 314731, 629462, 1258924, 1573655, 3147310, 4091503, 6294620, 8183006, 16366012, 20457515, 40915030, 81830060]

約数ペア:

[(1, 81830060), (2, 40915030), (4, 20457515), (5, 16366012), (10, 8183006), (13, 6294620), (20, 4091503), (26, 3147310), (52, 1573655), (65, 1258924), (130, 629462), (260, 314731), (491, 166660), (641, 127660), (982, 83330), (1282, 63830), (1964, 41665), (2455, 33332), (2564, 31915), (3205, 25532), (4910, 16666), (6383, 12820), (6410, 12766), (8333, 9820)]