18016380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{991}}^1$

素因数の和:1107

約数の個数: 72

約数和(自身を含む): 55246464

約数和(自身を除く): 37230084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 991, 1010, 1212, 1515, 1818, 1982, 2020, 2973, 3030, 3636, 3964, 4545, 4955, 5946, 6060, 8919, 9090, 9910, 11892, 14865, 17838, 18180, 19820, 29730, 35676, 44595, 59460, 89190, 100091, 178380, 200182, 300273, 400364, 500455, 600546, 900819, 1000910, 1201092, 1501365, 1801638, 2001820, 3002730, 3603276, 4504095, 6005460, 9008190, 18016380]

約数ペア:

[(1, 18016380), (2, 9008190), (3, 6005460), (4, 4504095), (5, 3603276), (6, 3002730), (9, 2001820), (10, 1801638), (12, 1501365), (15, 1201092), (18, 1000910), (20, 900819), (30, 600546), (36, 500455), (45, 400364), (60, 300273), (90, 200182), (101, 178380), (180, 100091), (202, 89190), (303, 59460), (404, 44595), (505, 35676), (606, 29730), (909, 19820), (991, 18180), (1010, 17838), (1212, 14865), (1515, 11892), (1818, 9910), (1982, 9090), (2020, 8919), (2973, 6060), (3030, 5946), (3636, 4955), (3964, 4545)]