217475970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1\times {\mathrm{421}}^1$

素因数の和:755

約数の個数: 64

約数和(自身を含む): 533056896

約数和(自身を除く): 315580926

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 134, 201, 257, 335, 402, 421, 514, 670, 771, 842, 1005, 1263, 1285, 1542, 2010, 2105, 2526, 2570, 3855, 4210, 6315, 7710, 12630, 17219, 28207, 34438, 51657, 56414, 84621, 86095, 103314, 108197, 141035, 169242, 172190, 216394, 258285, 282070, 324591, 423105, 516570, 540985, 649182, 846210, 1081970, 1622955, 3245910, 7249199, 14498398, 21747597, 36245995, 43495194, 72491990, 108737985, 217475970]

約数ペア:

[(1, 217475970), (2, 108737985), (3, 72491990), (5, 43495194), (6, 36245995), (10, 21747597), (15, 14498398), (30, 7249199), (67, 3245910), (134, 1622955), (201, 1081970), (257, 846210), (335, 649182), (402, 540985), (421, 516570), (514, 423105), (670, 324591), (771, 282070), (842, 258285), (1005, 216394), (1263, 172190), (1285, 169242), (1542, 141035), (2010, 108197), (2105, 103314), (2526, 86095), (2570, 84621), (3855, 56414), (4210, 51657), (6315, 34438), (7710, 28207), (12630, 17219)]