215514650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2531}}^1$

素因数の和:2687

約数の個数: 48

約数和(自身を含む): 435159648

約数和(自身を除く): 219644998

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 131, 262, 325, 650, 655, 1310, 1703, 2531, 3275, 3406, 5062, 6550, 8515, 12655, 17030, 25310, 32903, 42575, 63275, 65806, 85150, 126550, 164515, 329030, 331561, 663122, 822575, 1645150, 1657805, 3315610, 4310293, 8289025, 8620586, 16578050, 21551465, 43102930, 107757325, 215514650]

約数ペア:

[(1, 215514650), (2, 107757325), (5, 43102930), (10, 21551465), (13, 16578050), (25, 8620586), (26, 8289025), (50, 4310293), (65, 3315610), (130, 1657805), (131, 1645150), (262, 822575), (325, 663122), (650, 331561), (655, 329030), (1310, 164515), (1703, 126550), (2531, 85150), (3275, 65806), (3406, 63275), (5062, 42575), (6550, 32903), (8515, 25310), (12655, 17030)]