205999740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{381481}}^1$

素因数の和:381499

約数の個数: 48

約数和(自身を含む): 640889760

約数和(自身を除く): 434890020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 381481, 762962, 1144443, 1525924, 1907405, 2288886, 3433329, 3814810, 4577772, 5722215, 6866658, 7629620, 10299987, 11444430, 13733316, 17166645, 20599974, 22888860, 34333290, 41199948, 51499935, 68666580, 102999870, 205999740]

約数ペア:

[(1, 205999740), (2, 102999870), (3, 68666580), (4, 51499935), (5, 41199948), (6, 34333290), (9, 22888860), (10, 20599974), (12, 17166645), (15, 13733316), (18, 11444430), (20, 10299987), (27, 7629620), (30, 6866658), (36, 5722215), (45, 4577772), (54, 3814810), (60, 3433329), (90, 2288886), (108, 1907405), (135, 1525924), (180, 1144443), (270, 762962), (540, 381481)]