290506520

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1\times {\mathrm{277}}^1$

素因数の和:612

約数の個数: 64

約数和(自身を含む): 664130880

約数和(自身を除く): 373624360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 167, 277, 314, 334, 554, 628, 668, 785, 835, 1108, 1256, 1336, 1385, 1570, 1670, 2216, 2770, 3140, 3340, 5540, 6280, 6680, 11080, 26219, 43489, 46259, 52438, 86978, 92518, 104876, 131095, 173956, 185036, 209752, 217445, 231295, 262190, 347912, 370072, 434890, 462590, 524380, 869780, 925180, 1048760, 1739560, 1850360, 7262663, 14525326, 29050652, 36313315, 58101304, 72626630, 145253260, 290506520]

約数ペア:

[(1, 290506520), (2, 145253260), (4, 72626630), (5, 58101304), (8, 36313315), (10, 29050652), (20, 14525326), (40, 7262663), (157, 1850360), (167, 1739560), (277, 1048760), (314, 925180), (334, 869780), (554, 524380), (628, 462590), (668, 434890), (785, 370072), (835, 347912), (1108, 262190), (1256, 231295), (1336, 217445), (1385, 209752), (1570, 185036), (1670, 173956), (2216, 131095), (2770, 104876), (3140, 92518), (3340, 86978), (5540, 52438), (6280, 46259), (6680, 43489), (11080, 26219)]