216508720

素因数分解:

$2^4\times 5^1\times {\mathrm{631}}^1\times {\mathrm{4289}}^1$

素因数の和:4933

約数の個数: 40

約数和(自身を含む): 504298080

約数和(自身を除く): 287789360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 631, 1262, 2524, 3155, 4289, 5048, 6310, 8578, 10096, 12620, 17156, 21445, 25240, 34312, 42890, 50480, 68624, 85780, 171560, 343120, 2706359, 5412718, 10825436, 13531795, 21650872, 27063590, 43301744, 54127180, 108254360, 216508720]

約数ペア:

[(1, 216508720), (2, 108254360), (4, 54127180), (5, 43301744), (8, 27063590), (10, 21650872), (16, 13531795), (20, 10825436), (40, 5412718), (80, 2706359), (631, 343120), (1262, 171560), (2524, 85780), (3155, 68624), (4289, 50480), (5048, 42890), (6310, 34312), (8578, 25240), (10096, 21445), (12620, 17156)]