1806240520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{19489}}^1$

素因数の和:19838

約数の個数: 64

約数和(自身を含む): 4658889600

約数和(自身を除く): 2852649080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 331, 662, 1324, 1655, 2317, 2648, 3310, 4634, 6620, 9268, 11585, 13240, 18536, 19489, 23170, 38978, 46340, 77956, 92680, 97445, 136423, 155912, 194890, 272846, 389780, 545692, 682115, 779560, 1091384, 1364230, 2728460, 5456920, 6450859, 12901718, 25803436, 32254295, 45156013, 51606872, 64508590, 90312026, 129017180, 180624052, 225780065, 258034360, 361248104, 451560130, 903120260, 1806240520]

約数ペア:

[(1, 1806240520), (2, 903120260), (4, 451560130), (5, 361248104), (7, 258034360), (8, 225780065), (10, 180624052), (14, 129017180), (20, 90312026), (28, 64508590), (35, 51606872), (40, 45156013), (56, 32254295), (70, 25803436), (140, 12901718), (280, 6450859), (331, 5456920), (662, 2728460), (1324, 1364230), (1655, 1091384), (2317, 779560), (2648, 682115), (3310, 545692), (4634, 389780), (6620, 272846), (9268, 194890), (11585, 155912), (13240, 136423), (18536, 97445), (19489, 92680), (23170, 77956), (38978, 46340)]