215101580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1\times {\mathrm{947}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 464891616

約数和(自身を除く): 249790036

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 277, 410, 554, 820, 947, 1108, 1385, 1894, 2770, 3788, 4735, 5540, 9470, 11357, 18940, 22714, 38827, 45428, 56785, 77654, 113570, 155308, 194135, 227140, 262319, 388270, 524638, 776540, 1049276, 1311595, 2623190, 5246380, 10755079, 21510158, 43020316, 53775395, 107550790, 215101580]

約数ペア:

[(1, 215101580), (2, 107550790), (4, 53775395), (5, 43020316), (10, 21510158), (20, 10755079), (41, 5246380), (82, 2623190), (164, 1311595), (205, 1049276), (277, 776540), (410, 524638), (554, 388270), (820, 262319), (947, 227140), (1108, 194135), (1385, 155308), (1894, 113570), (2770, 77654), (3788, 56785), (4735, 45428), (5540, 38827), (9470, 22714), (11357, 18940)]