205710625

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1019}}^1$

素因数の和:1075

約数の個数: 40

約数和(自身を含む): 286783200

約数和(自身を除く): 81072575

約数列:

[1, 5, 17, 19, 25, 85, 95, 125, 323, 425, 475, 625, 1019, 1615, 2125, 2375, 5095, 8075, 10625, 11875, 17323, 19361, 25475, 40375, 86615, 96805, 127375, 201875, 329137, 433075, 484025, 636875, 1645685, 2165375, 2420125, 8228425, 10826875, 12100625, 41142125, 205710625]

約数ペア:

[(1, 205710625), (5, 41142125), (17, 12100625), (19, 10826875), (25, 8228425), (85, 2420125), (95, 2165375), (125, 1645685), (323, 636875), (425, 484025), (475, 433075), (625, 329137), (1019, 201875), (1615, 127375), (2125, 96805), (2375, 86615), (5095, 40375), (8075, 25475), (10625, 19361), (11875, 17323)]