491210000

素因数分解:

$2^4\times 5^4\times {\mathrm{49121}}^1$

素因数の和:49149

約数の個数: 50

約数和(自身を含む): 1189292742

約数和(自身を除く): 698082742

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 49121, 98242, 196484, 245605, 392968, 491210, 785936, 982420, 1228025, 1964840, 2456050, 3929680, 4912100, 6140125, 9824200, 12280250, 19648400, 24560500, 30700625, 49121000, 61401250, 98242000, 122802500, 245605000, 491210000]

約数ペア:

[(1, 491210000), (2, 245605000), (4, 122802500), (5, 98242000), (8, 61401250), (10, 49121000), (16, 30700625), (20, 24560500), (25, 19648400), (40, 12280250), (50, 9824200), (80, 6140125), (100, 4912100), (125, 3929680), (200, 2456050), (250, 1964840), (400, 1228025), (500, 982420), (625, 785936), (1000, 491210), (1250, 392968), (2000, 245605), (2500, 196484), (5000, 98242), (10000, 49121)]