6780020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 15558480

約数和(自身を除く): 8778460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 293, 356, 445, 586, 890, 1157, 1172, 1465, 1780, 2314, 2930, 3809, 4628, 5785, 5860, 7618, 11570, 15236, 19045, 23140, 26077, 38090, 52154, 76180, 104308, 130385, 260770, 339001, 521540, 678002, 1356004, 1695005, 3390010, 6780020]

約数ペア:

[(1, 6780020), (2, 3390010), (4, 1695005), (5, 1356004), (10, 678002), (13, 521540), (20, 339001), (26, 260770), (52, 130385), (65, 104308), (89, 76180), (130, 52154), (178, 38090), (260, 26077), (293, 23140), (356, 19045), (445, 15236), (586, 11570), (890, 7618), (1157, 5860), (1172, 5785), (1465, 4628), (1780, 3809), (2314, 2930)]