18200025

素因数分解:

$3^3\times 5^2\times {\mathrm{59}}^1\times {\mathrm{457}}^1$

素因数の和:535

約数の個数: 48

約数和(自身を含む): 34075200

約数和(自身を除く): 15875175

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 59, 75, 135, 177, 225, 295, 457, 531, 675, 885, 1371, 1475, 1593, 2285, 2655, 4113, 4425, 6855, 7965, 11425, 12339, 13275, 20565, 26963, 34275, 39825, 61695, 80889, 102825, 134815, 242667, 308475, 404445, 674075, 728001, 1213335, 2022225, 3640005, 6066675, 18200025]

約数ペア:

[(1, 18200025), (3, 6066675), (5, 3640005), (9, 2022225), (15, 1213335), (25, 728001), (27, 674075), (45, 404445), (59, 308475), (75, 242667), (135, 134815), (177, 102825), (225, 80889), (295, 61695), (457, 39825), (531, 34275), (675, 26963), (885, 20565), (1371, 13275), (1475, 12339), (1593, 11425), (2285, 7965), (2655, 6855), (4113, 4425)]