19587825

素因数分解:

$3^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{569}}^1$

素因数の和:608

約数の個数: 60

約数和(自身を含む): 38485260

約数和(自身を除く): 18897435

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 225, 255, 405, 425, 459, 569, 675, 765, 1275, 1377, 1707, 2025, 2295, 2845, 3825, 5121, 6885, 8535, 9673, 11475, 14225, 15363, 25605, 29019, 34425, 42675, 46089, 48365, 76815, 87057, 128025, 145095, 230445, 241825, 261171, 384075, 435285, 725475, 783513, 1152225, 1305855, 2176425, 3917565, 6529275, 19587825]

約数ペア:

[(1, 19587825), (3, 6529275), (5, 3917565), (9, 2176425), (15, 1305855), (17, 1152225), (25, 783513), (27, 725475), (45, 435285), (51, 384075), (75, 261171), (81, 241825), (85, 230445), (135, 145095), (153, 128025), (225, 87057), (255, 76815), (405, 48365), (425, 46089), (459, 42675), (569, 34425), (675, 29019), (765, 25605), (1275, 15363), (1377, 14225), (1707, 11475), (2025, 9673), (2295, 8535), (2845, 6885), (3825, 5121)]