138420180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10831}}^1$

素因数の和:10917

約数の個数: 72

約数和(自身を含む): 425827584

約数和(自身を除く): 287407404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 10831, 12780, 21662, 32493, 43324, 54155, 64986, 97479, 108310, 129972, 162465, 194958, 216620, 324930, 389916, 487395, 649860, 769001, 974790, 1538002, 1949580, 2307003, 3076004, 3845005, 4614006, 6921009, 7690010, 9228012, 11535015, 13842018, 15380020, 23070030, 27684036, 34605045, 46140060, 69210090, 138420180]

約数ペア:

[(1, 138420180), (2, 69210090), (3, 46140060), (4, 34605045), (5, 27684036), (6, 23070030), (9, 15380020), (10, 13842018), (12, 11535015), (15, 9228012), (18, 7690010), (20, 6921009), (30, 4614006), (36, 3845005), (45, 3076004), (60, 2307003), (71, 1949580), (90, 1538002), (142, 974790), (180, 769001), (213, 649860), (284, 487395), (355, 389916), (426, 324930), (639, 216620), (710, 194958), (852, 162465), (1065, 129972), (1278, 108310), (1420, 97479), (2130, 64986), (2556, 54155), (3195, 43324), (4260, 32493), (6390, 21662), (10831, 12780)]