18836460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{461}}^1$

素因数の和:703

約数の個数: 72

約数和(自身を含む): 57513456

約数和(自身を除く): 38676996

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 227, 454, 461, 681, 908, 922, 1135, 1362, 1383, 1844, 2043, 2270, 2305, 2724, 2766, 3405, 4086, 4149, 4540, 4610, 5532, 6810, 6915, 8172, 8298, 9220, 10215, 13620, 13830, 16596, 20430, 20745, 27660, 40860, 41490, 82980, 104647, 209294, 313941, 418588, 523235, 627882, 941823, 1046470, 1255764, 1569705, 1883646, 2092940, 3139410, 3767292, 4709115, 6278820, 9418230, 18836460]

約数ペア:

[(1, 18836460), (2, 9418230), (3, 6278820), (4, 4709115), (5, 3767292), (6, 3139410), (9, 2092940), (10, 1883646), (12, 1569705), (15, 1255764), (18, 1046470), (20, 941823), (30, 627882), (36, 523235), (45, 418588), (60, 313941), (90, 209294), (180, 104647), (227, 82980), (454, 41490), (461, 40860), (681, 27660), (908, 20745), (922, 20430), (1135, 16596), (1362, 13830), (1383, 13620), (1844, 10215), (2043, 9220), (2270, 8298), (2305, 8172), (2724, 6915), (2766, 6810), (3405, 5532), (4086, 4610), (4149, 4540)]