28278225

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{7393}}^1$

素因数の和:7426

約数の個数: 36

約数和(自身を含む): 53636076

約数和(自身を除く): 25357851

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 7393, 22179, 36965, 66537, 110895, 125681, 184825, 332685, 377043, 554475, 628405, 1131129, 1663425, 1885215, 3142025, 5655645, 9426075, 28278225]

約数ペア:

[(1, 28278225), (3, 9426075), (5, 5655645), (9, 3142025), (15, 1885215), (17, 1663425), (25, 1131129), (45, 628405), (51, 554475), (75, 377043), (85, 332685), (153, 184825), (225, 125681), (255, 110895), (425, 66537), (765, 36965), (1275, 22179), (3825, 7393)]