51251720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{98561}}^1$

素因数の和:98585

約数の個数: 32

約数和(自身を含む): 124188120

約数和(自身を除く): 72936400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 98561, 197122, 394244, 492805, 788488, 985610, 1281293, 1971220, 2562586, 3942440, 5125172, 6406465, 10250344, 12812930, 25625860, 51251720]

約数ペア:

[(1, 51251720), (2, 25625860), (4, 12812930), (5, 10250344), (8, 6406465), (10, 5125172), (13, 3942440), (20, 2562586), (26, 1971220), (40, 1281293), (52, 985610), (65, 788488), (104, 492805), (130, 394244), (260, 197122), (520, 98561)]