65460625

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:199

約数の個数: 40

約数和(自身を含む): 88902792

約数和(自身を除く): 23442167

約数列:

[1, 5, 17, 25, 61, 85, 101, 125, 305, 425, 505, 625, 1037, 1525, 1717, 2125, 2525, 5185, 6161, 7625, 8585, 10625, 12625, 25925, 30805, 38125, 42925, 63125, 104737, 129625, 154025, 214625, 523685, 648125, 770125, 1073125, 2618425, 3850625, 13092125, 65460625]

約数ペア:

[(1, 65460625), (5, 13092125), (17, 3850625), (25, 2618425), (61, 1073125), (85, 770125), (101, 648125), (125, 523685), (305, 214625), (425, 154025), (505, 129625), (625, 104737), (1037, 63125), (1525, 42925), (1717, 38125), (2125, 30805), (2525, 25925), (5185, 12625), (6161, 10625), (7625, 8585)]