201611720

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{9049}}^1$

素因数の和:9617

約数の個数: 32

約数和(自身を含む): 454491000

約数和(自身を除く): 252879280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 4456, 5570, 9049, 11140, 18098, 22280, 36196, 45245, 72392, 90490, 180980, 361960, 5040293, 10080586, 20161172, 25201465, 40322344, 50402930, 100805860, 201611720]

約数ペア:

[(1, 201611720), (2, 100805860), (4, 50402930), (5, 40322344), (8, 25201465), (10, 20161172), (20, 10080586), (40, 5040293), (557, 361960), (1114, 180980), (2228, 90490), (2785, 72392), (4456, 45245), (5570, 36196), (9049, 22280), (11140, 18098)]