212748978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{443}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 472614912

約数和(自身を除く): 259865934

約数列:

[1, 2, 3, 6, 13, 26, 39, 47, 78, 94, 131, 141, 262, 282, 393, 443, 611, 786, 886, 1222, 1329, 1703, 1833, 2658, 3406, 3666, 5109, 5759, 6157, 10218, 11518, 12314, 17277, 18471, 20821, 34554, 36942, 41642, 58033, 62463, 80041, 116066, 124926, 160082, 174099, 240123, 270673, 348198, 480246, 541346, 754429, 812019, 1508858, 1624038, 2263287, 2727551, 4526574, 5455102, 8182653, 16365306, 35458163, 70916326, 106374489, 212748978]

約数ペア:

[(1, 212748978), (2, 106374489), (3, 70916326), (6, 35458163), (13, 16365306), (26, 8182653), (39, 5455102), (47, 4526574), (78, 2727551), (94, 2263287), (131, 1624038), (141, 1508858), (262, 812019), (282, 754429), (393, 541346), (443, 480246), (611, 348198), (786, 270673), (886, 240123), (1222, 174099), (1329, 160082), (1703, 124926), (1833, 116066), (2658, 80041), (3406, 62463), (3666, 58033), (5109, 41642), (5759, 36942), (6157, 34554), (10218, 20821), (11518, 18471), (12314, 17277)]