2115090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 5593536

約数和(自身を除く): 3478446

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 331, 355, 426, 639, 662, 710, 993, 1065, 1278, 1655, 1986, 2130, 2979, 3195, 3310, 4965, 5958, 6390, 9930, 14895, 23501, 29790, 47002, 70503, 117505, 141006, 211509, 235010, 352515, 423018, 705030, 1057545, 2115090]

約数ペア:

[(1, 2115090), (2, 1057545), (3, 705030), (5, 423018), (6, 352515), (9, 235010), (10, 211509), (15, 141006), (18, 117505), (30, 70503), (45, 47002), (71, 29790), (90, 23501), (142, 14895), (213, 9930), (331, 6390), (355, 5958), (426, 4965), (639, 3310), (662, 3195), (710, 2979), (993, 2130), (1065, 1986), (1278, 1655)]