65010625

素因数分解:

$5^4\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:163

約数の個数: 40

約数和(自身を含む): 86597280

約数和(自身を除く): 21586655

約数列:

[1, 5, 25, 41, 43, 59, 125, 205, 215, 295, 625, 1025, 1075, 1475, 1763, 2419, 2537, 5125, 5375, 7375, 8815, 12095, 12685, 25625, 26875, 36875, 44075, 60475, 63425, 104017, 220375, 302375, 317125, 520085, 1101875, 1511875, 1585625, 2600425, 13002125, 65010625]

約数ペア:

[(1, 65010625), (5, 13002125), (25, 2600425), (41, 1585625), (43, 1511875), (59, 1101875), (125, 520085), (205, 317125), (215, 302375), (295, 220375), (625, 104017), (1025, 63425), (1075, 60475), (1475, 44075), (1763, 36875), (2419, 26875), (2537, 25625), (5125, 12685), (5375, 12095), (7375, 8815)]