18732730

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 34941456

約数和(自身を除く): 16208726

約数列:

[1, 2, 5, 10, 37, 74, 185, 197, 257, 370, 394, 514, 985, 1285, 1970, 2570, 7289, 9509, 14578, 19018, 36445, 47545, 50629, 72890, 95090, 101258, 253145, 506290, 1873273, 3746546, 9366365, 18732730]

約数ペア:

[(1, 18732730), (2, 9366365), (5, 3746546), (10, 1873273), (37, 506290), (74, 253145), (185, 101258), (197, 95090), (257, 72890), (370, 50629), (394, 47545), (514, 36445), (985, 19018), (1285, 14578), (1970, 9509), (2570, 7289)]