163996885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 232349040

約数和(自身を除く): 68352155

約数列:

[1, 5, 13, 19, 29, 65, 95, 145, 241, 247, 361, 377, 551, 1205, 1235, 1805, 1885, 2755, 3133, 4579, 4693, 6989, 7163, 10469, 15665, 22895, 23465, 34945, 35815, 52345, 59527, 87001, 90857, 132791, 136097, 297635, 435005, 454285, 663955, 680485, 1131013, 1726283, 2523029, 5655065, 8631415, 12615145, 32799377, 163996885]

約数ペア:

[(1, 163996885), (5, 32799377), (13, 12615145), (19, 8631415), (29, 5655065), (65, 2523029), (95, 1726283), (145, 1131013), (241, 680485), (247, 663955), (361, 454285), (377, 435005), (551, 297635), (1205, 136097), (1235, 132791), (1805, 90857), (1885, 87001), (2755, 59527), (3133, 52345), (4579, 35815), (4693, 34945), (6989, 23465), (7163, 22895), (10469, 15665)]