381731475

素因数分解:

$3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{281}}^1\times {\mathrm{307}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 646208640

約数和(自身を除く): 264477165

約数列:

[1, 3, 5, 15, 25, 59, 75, 177, 281, 295, 307, 843, 885, 921, 1405, 1475, 1535, 4215, 4425, 4605, 7025, 7675, 16579, 18113, 21075, 23025, 49737, 54339, 82895, 86267, 90565, 248685, 258801, 271695, 414475, 431335, 452825, 1243425, 1294005, 1358475, 2156675, 5089753, 6470025, 15269259, 25448765, 76346295, 127243825, 381731475]

約数ペア:

[(1, 381731475), (3, 127243825), (5, 76346295), (15, 25448765), (25, 15269259), (59, 6470025), (75, 5089753), (177, 2156675), (281, 1358475), (295, 1294005), (307, 1243425), (843, 452825), (885, 431335), (921, 414475), (1405, 271695), (1475, 258801), (1535, 248685), (4215, 90565), (4425, 86267), (4605, 82895), (7025, 54339), (7675, 49737), (16579, 23025), (18113, 21075)]