217940292

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{487}}^1$

素因数の和:929

約数の個数: 72

約数和(自身を含む): 571264512

約数和(自身を除く): 353324220

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 401, 487, 558, 802, 974, 1116, 1203, 1461, 1604, 1948, 2406, 2922, 3609, 4383, 4812, 5844, 7218, 8766, 12431, 14436, 15097, 17532, 24862, 30194, 37293, 45291, 49724, 60388, 74586, 90582, 111879, 135873, 149172, 181164, 195287, 223758, 271746, 390574, 447516, 543492, 585861, 781148, 1171722, 1757583, 2343444, 3515166, 6053897, 7030332, 12107794, 18161691, 24215588, 36323382, 54485073, 72646764, 108970146, 217940292]

約数ペア:

[(1, 217940292), (2, 108970146), (3, 72646764), (4, 54485073), (6, 36323382), (9, 24215588), (12, 18161691), (18, 12107794), (31, 7030332), (36, 6053897), (62, 3515166), (93, 2343444), (124, 1757583), (186, 1171722), (279, 781148), (372, 585861), (401, 543492), (487, 447516), (558, 390574), (802, 271746), (974, 223758), (1116, 195287), (1203, 181164), (1461, 149172), (1604, 135873), (1948, 111879), (2406, 90582), (2922, 74586), (3609, 60388), (4383, 49724), (4812, 45291), (5844, 37293), (7218, 30194), (8766, 24862), (12431, 17532), (14436, 15097)]