1299486500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{199921}}^1$

素因数の和:199953

約数の個数: 48

約数和(自身を含む): 3056407536

約数和(自身を除く): 1756921036

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 6500, 199921, 399842, 799684, 999605, 1999210, 2598973, 3998420, 4998025, 5197946, 9996050, 10395892, 12994865, 19992100, 24990125, 25989730, 49980250, 51979460, 64974325, 99960500, 129948650, 259897300, 324871625, 649743250, 1299486500]

約数ペア:

[(1, 1299486500), (2, 649743250), (4, 324871625), (5, 259897300), (10, 129948650), (13, 99960500), (20, 64974325), (25, 51979460), (26, 49980250), (50, 25989730), (52, 24990125), (65, 19992100), (100, 12994865), (125, 10395892), (130, 9996050), (250, 5197946), (260, 4998025), (325, 3998420), (500, 2598973), (650, 1999210), (1300, 999605), (1625, 799684), (3250, 399842), (6500, 199921)]