65605000

素因数分解:

$2^3\times 5^4\times {\mathrm{13121}}^1$

素因数の和:13147

約数の個数: 40

約数和(自身を含む): 153724230

約数和(自身を除く): 88119230

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 13121, 26242, 52484, 65605, 104968, 131210, 262420, 328025, 524840, 656050, 1312100, 1640125, 2624200, 3280250, 6560500, 8200625, 13121000, 16401250, 32802500, 65605000]

約数ペア:

[(1, 65605000), (2, 32802500), (4, 16401250), (5, 13121000), (8, 8200625), (10, 6560500), (20, 3280250), (25, 2624200), (40, 1640125), (50, 1312100), (100, 656050), (125, 524840), (200, 328025), (250, 262420), (500, 131210), (625, 104968), (1000, 65605), (1250, 52484), (2500, 26242), (5000, 13121)]