289920995

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{401}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 438848928

約数和(自身を除く): 148927933

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 227, 245, 401, 455, 637, 1135, 1589, 2005, 2807, 2951, 3185, 5213, 7945, 11123, 14035, 14755, 19649, 20657, 26065, 36491, 55615, 91027, 98245, 103285, 144599, 182455, 255437, 455135, 637189, 722995, 1183351, 1277185, 3185945, 4460323, 5916755, 8283457, 22301615, 41417285, 57984199, 289920995]

約数ペア:

[(1, 289920995), (5, 57984199), (7, 41417285), (13, 22301615), (35, 8283457), (49, 5916755), (65, 4460323), (91, 3185945), (227, 1277185), (245, 1183351), (401, 722995), (455, 637189), (637, 455135), (1135, 255437), (1589, 182455), (2005, 144599), (2807, 103285), (2951, 98245), (3185, 91027), (5213, 55615), (7945, 36491), (11123, 26065), (14035, 20657), (14755, 19649)]