161775215

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1511}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 248209920

約数和(自身を除く): 86434705

約数列:

[1, 5, 7, 19, 23, 35, 49, 95, 115, 133, 161, 245, 437, 665, 805, 931, 1127, 1511, 2185, 3059, 4655, 5635, 7555, 10577, 15295, 21413, 28709, 34753, 52885, 74039, 107065, 143545, 173765, 200963, 243271, 370195, 660307, 1004815, 1216355, 1406741, 1702897, 3301535, 4622149, 7033705, 8514485, 23110745, 32355043, 161775215]

約数ペア:

[(1, 161775215), (5, 32355043), (7, 23110745), (19, 8514485), (23, 7033705), (35, 4622149), (49, 3301535), (95, 1702897), (115, 1406741), (133, 1216355), (161, 1004815), (245, 660307), (437, 370195), (665, 243271), (805, 200963), (931, 173765), (1127, 143545), (1511, 107065), (2185, 74039), (3059, 52885), (4655, 34753), (5635, 28709), (7555, 21413), (10577, 15295)]