18071220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{863}}^1$

素因数の和:1224

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 32731980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349, 698, 863, 1047, 1396, 1726, 1745, 2094, 2589, 3452, 3490, 4188, 4315, 5178, 5235, 6980, 8630, 10356, 10470, 12945, 17260, 20940, 25890, 51780, 301187, 602374, 903561, 1204748, 1505935, 1807122, 3011870, 3614244, 4517805, 6023740, 9035610, 18071220]

約数ペア:

[(1, 18071220), (2, 9035610), (3, 6023740), (4, 4517805), (5, 3614244), (6, 3011870), (10, 1807122), (12, 1505935), (15, 1204748), (20, 903561), (30, 602374), (60, 301187), (349, 51780), (698, 25890), (863, 20940), (1047, 17260), (1396, 12945), (1726, 10470), (1745, 10356), (2094, 8630), (2589, 6980), (3452, 5235), (3490, 5178), (4188, 4315)]